There is this couple who's house has been robbed about 10 times and they want some security. So one day the wife goes to a pet store and asks, "do you have any guard dogs here?" The man who works there replies, "oh yes certainly, in fact here is our best one..." And then a little chiuhawa (bad spelling) comes out. And she says," this little thing, whats it going to do?" And the man says "this dog knows karate" the woman just stares at him then he says "watch... karate chair." then the dog goes up to the chair.. YA! YA! HAYA! and chops the chair in to little pieces. "whoa!" says the woman. "karate table." YA! YA! YA! YAYAYA! WAAAA! the table is chopped up in to little pieces.
So she buys the dog and takes it home and tells her husband " i got security." then the dog walks out. "What, whats this thing going to do?" and she says "oh, it knows karate!" and he says "karate my ass!"