I'm putting my hose away and I'm aware of a car pulling up next to and behind me. I turn round and don't recognise the driver or the car. And he leans across and says "I owe you some money!"
Me: "Sorry, you are ..."
Him: "You did the mews flat round the corner and I paid for the first one but never paid the second."
Me: "Oh yes, I did put a reminder through."
Him: "Sorry about that - my bank account is in Cyprus and I was out there until lockdown and couldn't transfer the money easily and then I kept meaning to sort it out."
Me: "Oh right okay so ..."
Him: "How much is it?"
Me: (Taking a punt) "£12.00 I think. It was before Xmas."
Him: (giving me £15) Here you go.
Me: "Hang on, I'll get you some change."
Him: "Don't worry - have it as a late payment charge."
Me: "Ok, thanks."