Would I? No. But shit like that does go on. Hell, ask Lee Thompson.
Does it really? Even when I was in the loop, I never knew of anyone who did that. Talk of this sort of thing was always on the level of rumor, gossip, and "what if..."
On the other hand, in a sport where guys are competing with muscle implants, convicts are competing on stage, BBs are selling used articles of clothing & making gay JO vids, and schmoes are jerking off in the audience during the posedown is anything really out of bounds in bodybuilding?