In that situation, shouldn't you underpay but leave your name and address, suggesting he take it up with the council/police? Do local/federal laws permit that?
I know what it's like though: I arrived late in to Spain once, I got ripped off as it should have been a fixed fare (I had lived in the city!), but it was late and night and was too tired to argue in Spanish.
I know what it's like though: I arrived late in to Spain once, I got ripped off as it should have been a fixed fare (I had lived in the city!), but it was late and night and was too tired to argue in Spanish.