Not every person who steps into a Brazilian Jiu-Jitsu dojo wants to transition their skill-set into mixed martial arts competition.
This man utilized his training, not for self defense of himself, but for someone else. This hero stepped up to a knife-wielding attacker after the attacker threatened a woman. You can catch the clip below:
How would you have reacted if this man manhandled you while you had a knife in your hand?