Given that the exact same question is the current top post but for driving instead of transit, I feel this question was needed.
My answer: I saw some guys hooking up a Raclette Grill to the outlet in an otherwise empty German intercity rail waggon. They had it unpacked in one of these 4 person seats with a small table. No idea if that could work or if draws too much power from the board net. I just headed on to the next waggon.
Someone today had a balaclava on with a bandanna tied around the forehead and sunglasses on. It is summer here.
My favourite was the guy who asked me if he could borrow my phone tomorrow to record his wedding to me. Ha.
In New York some man decided to hold the whole car hostage to some lengthy preaching and finally I told him he was boring and to shut up.