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.
On a bus from El Paso to Phoenix someone smoked a joint in the bus bathroom and got dumped on the side of the highway immediately after.
Two hours later on that same bus trip the bus got raided by immigration and I got into an argument with the officer that wouldn’t accept my ACTIVE, UNEXPIRED Military ID as a valid form of ID and started yelling at me for my passport (I have a Spanish last name). I threw my passport at him and told him to fuck off before I got my command group involved with his. I don’t know how that worked but he got real quiet and left me alone immediately after that lol. There were several people that were pulled off of that bus that night. It was overall pretty shitty.
It worked because cops are terrified of MPs. They know that the MPs can and will treat them the way they treat the normal citizenry.