1) Some dude grinding on me on the Piccadilly line was traumatising, I was on a college trip and was with one friend
2) First time I got the train back from UoM I had a drunken (or high) Scottish dude following me round Oxford Road as he was looking to 'get off' at Wigan... the station was so busy I managed to get a different train
3) Second time I got the train back from UoM I had some Chinese dude who couldn't speak English following me because he was looking to get off at Preston too... managed to get another train that time too
Oh and I fell on someone on the bus once, I swear the driver thought he was in the F1 or something with the speed he drove round a corner