When did you first know you were a gay guy?

I think I always knew - I remember as an eight year old standing at the school urinal trough with my classmates and looking at their beautiful soft pricks, while mine stood up like a tree - with piss shooting straight up like a bloody fountain - my treacherous body betraying my secret.

Mind you, I probably didn't know it was such a terrible secret then, but I guess I learned soon enough.