I say to a blonde, "Which came first, the chicken or the egg." The blonde says, "The chicken." I ask why. The blonde says, "You said it first." A resturant owner says, "Free food on the house." All of the customers run outside. The owner is puzzled. Then he hears noises coming from the roof. He walks outside and looks up, and asks, "Why are you up there?" The customers say, "You said there was free food up here."