I was at supermarket that charges for parking but takes £1 off your shopping bill - waiting for space - lovely old gent - in dog collar no less so cleric also - offers me his ticket with 40 mins on plus parking coupon attached - I cashed it! Felt so wrong with him being religious gent and all!
YABU- I was totally out of order
YANBU - fair do’s - he was giving the ticket away anyway
footnote - I will pay it forward and give the money to someone more deserving than my grabby self!! 