A young punker gets on the cross-town bus. He's got spiked, multicolored hair that's green, purple, and orange. His clothes are a tattered mix of colorful leather rags. His legs are bare and he is without shoes. His entire face and body are riddled with pierced jewelry, and his earrings are big, bright feathers.

He sits down in the only vacant seat, directly across from an old man who just stares at him for the next 10 miles.

Finally, the punker gets a little miffed and barks at the old man:

"What is with you? Didn't you ever do anything wild when you were young?"

Without missing a beat, the old man replies, "I remember back when I was young and in the Navy I got really drunk one night in Singapore. Couldn't control myself. Had sex with a parrot. I was just sitting here wondering if you were my son."