I used to work for a very safety conscious forestry company in B.C. The Chief Forester was flying to a remote logging site and when he boarded the float plane, he put on his lifejacket as required by our company policy. The pilot demanded that he remove it as "it was alarming the other passengers". He, of course, complied, but when the curtain was drawn (no flight deck doors on this baby) he managed to wriggle into the thing. Everybody happy!!