Doesn't only happen on a/c. On the train today from Southampton upto Manchester we paid the upgrade into 1st, but at Birmingham at leat SIX passengers wandered into the carriage muttering about how they were going to sit up here anyway and it's not like they would be thown out.
Well done to the Virgin train crew for not checking any tickets past Southampton Parkway and blatantly ignoring those who hadn't bothered to pay, on their subsequent walk throughs.
