A scientist points to a cage and says, "Here we have a lab rat, specially bred to be susceptible to peer pressure." The scientist holds out a beer and asks the rat, "How about a brewski?" The rat replies, "I don't drink." The scientist says, "All the cool rats drink beer." The rat replies, "Okay." The professor says, "Of course, there's more to science than just hurting animals, but frankly it's the part I like best." The rat lies on his back drinking the beer.