Trying to be cool by jumping on top of a stage monitor at an outside gig, instead I sent the wedge monitor spinning away into the crowd and I falling flat on my back. Somehow still played on maybe 1 or 2 notes slightly louder as I hit the floor...
Also there was pub I get did where this middle aged lady biker flashed her m***e at the entire band, standing centre of the dance floor. That wasn't pretty.