I teabag as often as possible because there is always an off-chance that they will get totally pissed and start playing retarded. Most people just do it because it's kinda funny (I laugh when it's done to me and it gives me motive to create a situation where I can return the nuts). Anyone who gets upset and cries about it is a tool. Get over it already, it's an animated tactical crouch maneuver. It's not like it's explicitly showing a man whipping his balls out and dunking them up and down your throat. Christ..