Peacock

An old man sat on a park bench next to a teenager.

The teenager had spiked hair in all different colours - green, red, orange, and blue.
My Dad kept staring at him.
The teenager kept looking and would find the old man staring every time.
When the teenager had had enough, he sarcastically asked:
“What's the matter old man, never done anything wild in your life?”
The old man responded, “I got stoned once and screwed a peacock once,
I was just wondering if you were my son."