Could be my son?

A young punk rocker with a red mohawk walks into a pub to order a beer. He sits down next to an old man who he notices is staring at him. Finally the punk asks, what the hell you lookin at old man?!  didnt you ever do anything crazy when you were a kid?

The old man thought for a minute and responded, 

ya i did.

I had sex with a chicken, and I was wondering if you were my son.