I had two colonoscopies within months due to an administrative cock-up (shut up over there...). Whilst the travelling to the hospital was inconvenient and the procedure somewhat unusual (mind you...), it did afford me the pleasure on both occasions of not only being able to fart freely and loudly into another human being's face but also to be actually encouraged to do so. The nurses were very nice and I did feel a bit guilty about it. I hope they got bonuses...