Hahahaha!
An army buddy of mine broke his arm in a somewhat similar incident.
A bunch of us were taking the train up to an amusement park, as part of a long day of celebrating (something or other). We'd been drinking all day, and had been thrown out of a department store, because we had taken an inflatable raft from their toy department, inflated it, and practiced amphibious assaults in the big fountain in the middle of the store.
Anyway, we were being all responsible and taking the train (because we were drunk), and heading up to this amusement park where we were going to have a scavenget hunt. Some of the things you had to find: an eskimo, a sober Swede, two ugly girls, etc.
So one guy (I've forgotten who it was now), decided that he wanted to get off the train, and leaned out the window to grab a passing pole to stop the train
. It was quite amazing that he could reach out far enough to actually get his hand on the pole, but of course it instantly broke his arm.
Good times.