The creator of REVAT says it's the only self-defense tactic that can protect someone from an attacker no matter how big or small the victim is. "They can actually apply the REVAT techniques in any situation no matter where they are and what the guy looks like, how strong he is. If there are two guys or five guys attacking all of this doesn't matter," said instructor Ingo Weigel.

Hmmm ... looks like Wing Chun ...