It's In The Genes

An older gentleman was standing at a bus stop, observing a young man with spiked hair colored orange, green, and blue.
After a few moments, the young man noticed him staring and said, "What's the matter, old man, haven't you ever done anything wild?"
The old man smiled and said, "Well, yes. I once had sex with a parrot, and I was wondering if you might be my
son."