Heh, Rome!! The meter wrote €40, the taxi driver asked for €60. He tried verbal-aggression and threatened to call the police. I took a photo of the meter and asked him to please call the police, I will show them the photo and tell them that he threatened me. He took the €40 and went his merry way.

Once upon a time (around 2005-2006) I had a colleague whose father was a taxi driver. He (the colleague) was openly telling us that every cabbie cheats. Once in a blue moon you find an honest one, or one whose cheating-meter-subsystem is broken.