A number of years ago we were in Zurich and my husband was kicked off a bus.

They mostly operate on the honor system there, but they do spot checks too. A person checked my husband's ticket and said it had expired so he made him leave the bus and purchase another ticket. My husband (who knew his other ticket was still good) then compared to the two tickets and they were identical.

The spot checker person was still around and my husband showed him the two tickets. He said Oh my, I have made a mistake. Please forgive me! He proceeded to give my husband a free ticket and money out of his own pocket because of his error.

My husband tried to give the money back, but the spot checker guy was totally mortified about making a mistake and insisted he keep the money.

Chris in Pearland, TX