As somebody who pays to commute to work every day via train, it really annoys me to see people getting on a train without a ticket, sitting down with obviously no intention of buying one from the guard, and then waiting until the rare occasion they are actually checked by a guard before innocently saying "can i buy a ticket" for a stop one of two stops down the line as if they've done nothing wrong.
And i'm not talking about train skipping youths who are probably struggling for money anyway, i'm talking about people i see on the train regularly, wearing formal clothes and clearly well off and commuting to work.

It's the lack of any remorse that gets me, as if they think its a perfectly fine thing to do.
And i bet they complain about the price of tickets going up...
Unfortunately i can't even call this rare.