Archive Feature

Secrets of the Shredder:
Dirty Fighting Goes Legit!


By E. Lawrence
Being able to employ “dirty fighting” in a violent encounter can spell the difference between life and death. The often-maligned category of moves includes gouging the eyes, raking the face, ripping facial features, pulling hair, biting, seizing the windpipe and delivering a variety of close-range blows. Many martial arts and self-defense instructors recognize the importance of these techniques, but few offer a realistic way of learning and practicing them—which is essential if you want to make them usable.

One instructor who bucks the trend is Richard Dimitri, founder of senshido. He’s quick to point out that in most situations, dirty tactics alone may not be enough to save the day and may not even be appropriate. But for situations when they are, Dimitri has the recipe for victory: an onslaught of vicious moves he calls “the shredder.” It entails unleashing a rapid-fire barrage of attacks that flow from one to the next and includes various principles and methodologies designed to make it an effective part of your arsenal.

Senshido self-dense sequence using shredder technique in Black Belt magazine.
When the aggressor confronts her, the martial artist raises her hands into a protective, de-escalation stance and steps back to create space (1). The assailant tries to grab her, and she responds by trapping his arm and digging her fingers into his eyes (2). Without retracting her hand from his face, she slams a palm-heel strike up into his chin (3), then rakes her fingers down his face, squeezes his windpipe and knees his thigh (4). Next, she steps behind him, gouges his eyes and bites him (5). The defender finishes by stepping back and shoving the attacker’s head into the wall (6).
(Photos by E. Lawrence)


Dimitri began his martial arts journey 30 years ago with kyokushin karate, aikido and hung gar kung fu. But after working in body guarding, bouncing and security, he discovered that the traditional arts suffered from serious limitations. When a fight resembled a hockey brawl, he found that he reverted to gross-motor movements—despite his 12 years of martial arts training. Thus, his research began.

Recognizing that violence outside the ring or dojo has psychological, behavioral and tactical dimensions that traditional arts don’t address, Dimitri embarked on a different path. It led him to study boxing and catch wrestling, as well as spend three years as an assistant instructor to Tony Blauer in the early 1990s before the two parted ways.

Richard Dimitri demonstrates reality-based self-defense training in Black Belt magazine.
To hone the skills needed to execute the shredder, Richard Dimitri says, you have to engage in realistic training with protective gear.
(Photo courtesy of Richard Dimitri)
Developing the Shredder

In creating his own system, Dimitri strove to make one that could work for everybody. “I’m not interested in training the next heavyweight champion,” he says. “My main concern is the housewife, the businessman, the child, the average person.”

If a move didn’t work against a larger, stronger assailant, Dimitri deemed it impractical for self-defense. In this way, he focused on tools that didn’t require size or strength. He sought techniques that could cause maximum damage with minimal pressure, were gross-motor-based, and targeted soft tissue and vital areas such as the eyes and throat. While such techniques existed in other fighting systems, Dimitri concluded that they weren’t taught in a way that enabled students to use them during the chaos of combat.

He set out to create a fighting technique that could bypass an attacker’s natural flinch and cover-up, one that would end the fight as quickly as possible. His guiding principle was simple: “As soon as you get ahold of the attacker, you want to immediately cause pain,” Dimitri says.

An assistant likened the mechanism of the technique Dimitri devised to that of a shredder tearing up a sheet of paper. “Now imagine your hand being that shredder; keep attacking the vitals without recoiling,” the man said. The nonstop action immediately puts your opponent on the defensive and reduces his offensive capability by shifting the predator-prey mentality of the fight.

Physical Application


Successful application of the shredder hinges on several tactical and behavioral considerations. Because it’s a close-range weapon, its effectiveness is often enhanced when the defender reacts the way his attacker expects, thus drawing him in and encouraging him to drop his guard.

Enter the Scenario

In Richard Dimitri’s art of senshido, scenario work is more than a drill in which students know what attack is coming and simply wait to respond with a specific counter. It forces them to deal with and respond to dialogue that’s often obscene and threatening, as well as with intimidation, physical encroachment and explosive violence. The situations are always spontaneous and dynamic, making the training harsh yet confidence-inspiring.

To avoid being surprised, shocked or rendered unable to effectively respond, they cover everything from the initial approach to dialogue to the physical assault itself and learn to function properly while facing those threats.
—E.L.
That’s when the shredder shifts into high gear. It becomes a spontaneous fusillade of gross-motor attacks: eye gouges, face rakes, ear and nose rips, biting, hair pulling, neck wrenches, throat crushes, elbow strikes, head butts and the like. It also encompasses diverse moves such as grabbing and breaking the fingers if the opponent places a hand within reach, and delivering knee thrusts or low-line kicks. His reactions dictate each move as you use tactile sensitivity to detect openings and exploit them.

All the aforementioned weapons and tools are employed in such a way that one flows into the next with minimal delay, thus giving the opponent less time to react. The goal is to overwhelm his defenses by using different tools to attack different body parts.

An essential component of the shredder is the “quarter beat.” Dimitri uses the term to refer to attacks that are effected without cocking or retracting the limb prior to launch. The foot or fist follows the shortest path to the target, thus applying the principles of economy of motion and closest weapon to closest target. The power of the strikes may be reduced, but the chance of landing one rises because the recipient has less time to move, cover or counter. Furthermore, many of the techniques that make up the shredder—specifically, the gouging, ripping and tearing moves—don’t require cocking, distance or momentum to deliver damage.

The shredder doesn’t rely on any single blow or technique any more than a chain saw relies on a single tooth to rip through a tree trunk. Its strength lies in the nonstop manner in which it’s applied. The constant cycling between the various tools makes it more than the sum of its parts.

To ensure maximum contact, Dimitri advises students to anchor their opponent so he can’t pull away. Grab an ear, a shoulder, the back of his neck or any other body part that will allow you to stabilize him. In all likelihood, the anchor will be fluid, meaning that you’ll have to move from one part to another as the fight progresses and the person moves. You may have to switch anchor hands, too. Avoid using clothing as an anchor, however, because it can tear and shift.

The ultimate goal of shredding is to twist your foe’s head as you maneuver behind him and position your chest against his back. From there, you have complete control and can force him to the ground if need be.
Footwork is important in closing the gap, Dimitri says. Keep moving as you jerk and twist your opponent around and use the shredder to keep him off-balance. In a multiple-attacker situation, you can use that controlled opponent as a shield against his cohorts.

Richard Dimitri demonstrates the shredder technique for reality-based self-defense in Black Belt magazine.
The presence of a potential assailant causes Richard Dimitri (left) to raise his hands in a protective stance (1). The thug swings with his right fist, and Dimitri advances to jam the strike while hitting him with a palm heel and clawing his face (2). Without retracting his hand, Dimitri drives his palm up into the attacker’s chin (3). As the man reels from the blow, Dimitri seizes his ear and jerks him to his right (4). Still anchoring his attacker via his ear, Dimitri executes a left palm strike before morphing it into a face rake (5). He follows up with a knee to the stomach (6), after which he spins the man to get behind him, rakes his face and chokes him (7). Dimitri then applies a throat crush, face gouge and ear bite (8). To finish, he wrenches the man to the ground and assumes a defensive posture (9). (Photos by E. Lawrence)


Mastering the Movements

Dimitri says the components of the shredder are so natural that you can easily access them under stress. However, to be applied most effectively, you need a comprehensive training program. A senshido maxim holds that if you don’t train it, you won’t do it.

You begin learning the shredder by combining the various components in a flowing manner and practicing them on a partner. At no time does Dimitri teach set patterns; in fact, he warns against using them because only the dynamics of the situation can determine your best options.

Richard Dimitri demonstrates reality-based self-defense in Black Belt magazine.
The assailant holds Richard Dimitri at knife point, which prompts the defender to adopt a pleading posture (1). Dimitri immediately seizes the attacker’s knife arm with both hands, jerks it away from his face and knees him in the groin (2). Still holding the knife, Dimitri gouges the man’s eyes and face (3). He continues his assault until the attacker drops his weapon (4), then blasts him with a knee thrust to the thigh.
(Photos by E. Lawrence)

Next come drills in which you acquire and manipulate your partner’s head, then twist it around, grab his ears and facial features, and simulate digging your fingers into his eyes. Practice that in a variety of positions, both standing and on the ground.

Over the years, Dimitri has found that many things which seem easy in drills fall apart in the face of real aggression. So as soon as you learn the basics of the shredder, he says you should don protective gear for your head and face and engage in full-contact scenario training involving single and multiple assailants, both armed and unarmed. You’ll find that in some situations, the shredder isn’t the solution, and in others, the tension can be reduced simply by talking—and that’s the way it should be.

As long as you’re in a clinch or in grappling range, you can apply the shredder while standing or on the ground. If you’re not close enough, you may need to strike, kick or use some other gap-closing method. Dimitri emphasizes that the shredder is not a stand-alone technique.

In certain circumstances, you can use behavior as a delivery vehicle—provided that the fight hasn’t gotten physical. Dimitri teaches tactics for getting into position to use the shredder by manipulating your opponent’s behavior in the pre-fight stage when he’s acting suspicious or aggressive. One example starts with the ready stance.

Assume a passive position that will enable you to attack if need be. Turn your body slightly with your hands at shoulder height and your palms facing forward. Although the stance appears submissive, it positions your body so your arms can jam any incoming attacks. Because the hand is quicker than the eye, especially at close range, you need a defense mechanism that will reflexively stop whatever your opponent throws—and that’s what this stance offers.

Dimitri advises you to add movement to your passive stance, preferably in the form of seemingly nervous circles that give the impression that you’re intimidated. Such a tactic makes it harder for him to hit you and allows you to scan your surroundings to see if he has any friends nearby.

Combine the passive stance with conciliatory words and nonthreatening body language designed to de-escalate the situation. If the aggressor persists, the stance will lull him into a false sense of security and set the stage for your pre-emptive attack. This behavioral element is the key to defeating a stronger and more skilled aggressor, Dimitri says. It enables an average person to avoid and, if necessary, defend himself by using and manipulating the behavior that’s already present in the conflict.

About the author: E. Lawrence is a freelance writer who specializes in covering reality-based fighting systems.






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