Going off at a slight tangent here ...

I was on a train a while ago where a young lady whose first, or indeed second, language was clearly not English was trying to explain very animatedly to the Conductor that she did have a ticket.
He was remarkably patient, spending most of the ten-minute journey between Nailsea & Backwell and Bristol Temple Meads trying to get her to understand that what she was clutching was not actually a valid ticket.
She had one of these:
