Oh well, if we're telling salty old sea stories, there was I in the dip at 40ft on a dark and stormy night over the Bay of Biscay when the Sea King filled with a dark and stormy stink as the ni-cad decided to run away.
Then the RFA failed to respond to a pan call, then we turned everything off and didn't have a radio any more, then the other Sea King was blocking the deck, then we ran through ditching drill whilst trying to find a red flare for the gun, then we recovered and couldn't turn off the battery except by finding a set of bolt croppers to cut the battery cable.
Not all drills are covered in the checklist