Talking of pre medical wind ups, one of the guys on my course swore blind that after the old "cough and tickle" he was asked to turn round, bend over and then had his cheeks parted to check for hemmeroids!
(No one beleived him, but he resolutely stuck to his story for the whole course)
Remember, the medical isn't a fitness test; there are some unbeleivably fat pilots out there.