My friend once tricked me into sipping his piss while we were drunk. ((pissed in my drink just a little dribble so I wouldn't taste it)) i was so pissed off, and since I was drunk, it was uber-elevated. He said I could punch him as long as I didnt hit him in the face or groin. So I did.. in the groin. I decided it was my right to since he had me drink his piss. After we sobered up I was glad I didn't give him twisted testes or something.. that would suck.

DONT EVER PISS IN YOUR FRIENDS DRINKS
That means you are NOT their friend.