One day a boy asks his grandfather for some money, and the grandpa says “well can your dick touch your asshole?” To which the boy replied “no”. So the grandpa says “okay.” And leaves it at that and walks off. A few years later the boy asks his grandfather for some money again and his grandfather once again asks “can your dick touch your asshole?” To which the boy proudly says “yes it can.” To which the grandpa says “good, now go fuck yourself.”