I'd say he was doing something hole-y... Wha? Heh heh...
A friend of mine worked up in CUH on summer placement a few years back. A guy was in having a bottle of ketchup removed from his arse. His explanation was that he was making a sandwich and had put the bottle on the floor while he got something from the top cupboard. While he was on the counter reaching up, he sneezed and his pants fell down, he fell off the counter and landed on the bottle which went right up his arse...
They would have believed him except he was unable to explain why there was a condom over the bottle.
Is your friend's name stephen merchant? Because i heard that story on ricky gervais' dvd.