Back in the 90's was doing a Med 1 retrieval down to YTGM then onwards to YBBN. Was a callout so had not had time for the morning constitutional after some Chinese the previous night. Had just got to ToC on the BNE leg when my tummy started communicating. Was brave for a while but could see that it was a losing battle. Ended up calling back to the nurse for a 'Bedpan Stat!' then pulled the curtain closed. C90 cockpit not the roomiest for the manoeuvre-and of course a day that I wore trousers instead of shorts. Some deft use of the outflow valves kept Doc and Nurse from asphyxiation-patient already on O2. Had to perform the same dance 3 times- and only 2 bedpans onboard. Landed in BNE with a very nasty package in the RHS. It was a VERY smooth landing. (Patient had a good outcome too!)