Little Johnny's Logic

Little Johnny was staying at his grandparents' house, and he asked his grandpa, "Can I have a cigarette?" His grandpa said, "Well, can your dick touch your asshole?" He said, "No." "Then that's your answer." A little bit later, Little Johnny asked for a beer. His grandpa said, "Well, can your dick touch your asshole?" He said, "I already said no." "Well, that's your answer." Later, he was complaining to his grandma, and she gave him cookies. His grandpa came up to him and said, "Can I have a cookie?" Little Johnny said, "Well, can your dick touch your asshole?" His grandpa said, "Well, yes, it can." And Little Johnny said, "Well, go fuck yourself, old man, because these are my cookies."