It has been mentioned in another thread, but a tall pilot as No.4 in a 4-ship of Mirages flying Darwin to Mt Isa on a long ferry, was caught short. But he managed to undo and wriggle out of the ejection seat harness, the parachute harness, his Mae West, unzip the flying suit and wriggle it down - oops, have to undo and drop the g-suit first - next the jocks, then do the business into a white leather flying glove, tie it off, and reverse the process. On looking up, his team-mates were nowhere in sight - he had passed a slight turning point and continued in a straight line.
Frantic radar search, full A/B to catch up, nobody noticed except the fuel man who wondered why #4 took so much more.