I was stood by the door at the end of the carriage, my back to the open window and a girl reached in from the other carriage and started tickling the back of my head.

It was fairly amusing in a way but oddly discomforting too - I'm not too keen on being attacked from behind, especially when I've got my back to something.

It's one of these weird situations too where it's supposed to be quite funny if a girl does it to a guy but quite creepy if a guy does it to a girl but surely the psychological processes involved are relatively similar?

Anyway when did you last get violated and how?