Damn, imagine breaking into a house and you see a dog pull the sheath off the machete then charge at you with it in his mouth. Fool doesn't even bark just slicing you up. Then the cops come and they arrest the owner. He says my dog did it not me. See I trained him here is the vid. No lawyer taking that case. Haha
As much as I don't like violent dogs, and I'm no dog expert but that was taught to that dog. Also it was wagging its tail. If a pit wants you, its gonna get you. Nice dangerous trick to teach a dog.