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.
I think the people into that scene really need therapy. It’s like passive self injurious behaviour.
Someone on Reddit once talked about working on porn sets, and said that the actresses all had this vacant quality. I think when you make your sex life about being a violent commodity rather than simple human intimacy and mutual pleasure that it’s unhealthy. Also some women have been murdered in the scene, and I think it hides sociopathic people fairly well.