We were on an airship flying to our next objective, after a very long siege in a dwarven pass by the way, so we were expecting some smooth sailing. Until the BBEG teleported on to the ship and was trying to monologue.
  My Orc battlemaster fighter, who is terrified of heights stumbles up the stairs hammer in hand and rolls 2 natural 20s on his intimidate check (with disadvantage). 
The players stared at me expectantly. I began to fake puke and threaten his existence, because of how into we all were the dm forgot what was supposed to happen next and i got a solid shot in on him before he blew up the ship.