This is everything. When the sh*t hits the fan, make it part of the entertainment.
I played in a super active, wildly energetic band once and the lead guitarist did an axe swing right into the mouth of the front mans face. Blood everywhere, not a beat missed, we kept on going. After the set, everyone thought it was a gag and part of the show.
Come to think of it, I think I sheered off a tuning peg that way one time too......
yeah, when you're able to keep your cool (apart from the blanking out), you can wing it and make it part of the show. If done right, no one will know if it was intentional or failure from your side.
I've had a frontman falling off stage (drunk, but not in an alcoholic sad way but more of a partied a bit too hard way) while singing harmonics with the other frontman - apart from the sound he made on impact, he did not miss a beat and the audience picked him up from the floor and put him back on stage, accompanied by cheers.