A good tool

Bob walks into a bar and sits on a stool next to the bar bully. The bully looks at Bob, grabs him by the arms and neck, and says, “That’s a choke-hold from Judo.” and lets go. Bob, figuring that the bully is just a bit drunk, lets it slide. Two minutes later, he finds himself in another hold, and the bully says, “That’s a secret bracing hold in Karate.” Now Bob is getting a little steamed, but he lets it pass. Five minutes later, the bully jumps on him again, and puts him in another compromising position. He says, “That’s a Death Move in Tae Kwon Do.” Now Bob is angry and quickly leaves the bar. Ten minutes later, he comes back into the bar, and the bully is still at the bar, waiting for another drink. Bob walks up to him, and before the bully can move, Bob lunges at him, his arm flying out from behind his back. The bully falls off of his stool, and is out cold. Bob turns to the bartender and says, “That was a monkey wrench from Sears.”