"On a similar note, there was the USN F14 jockey who after startup, suffered severe burns on selecting 100% O2...and having it react to his hair gel."
I also vaguely remember a ban on wearing facial make-up on an aircraft. Oh the fun to be had (not) debriefing some of the female fighter controllers who came on board the aircraft plastered with it on every sortie. I suppose that they could have used it to hide the burns had it happened to them. To paraphrase another thread, "Rules can be broken if critical for flight safety....unless I want to ignore them in which case the book says I can and its an infringement of my civil liberties and I know better and I will ignore it anyway so f*** o**" (and that was just the senior officers).