Back in the late seventies, I was travelling into London by train, alone, in a non-corridor carriage. At one stop a bloke entered the compartment. He sat down directly opposite me and, as the train pulled out of the station, announced loudly "They've let me out without my pills today". He then leant forward and silently stared at me. My stop was only 5 minutes away - but it seemed like an age. Anyone else had a weird encounter?