A customer left a handbag in my shop today, I wasn't aware straightaway but when I saw it I found a passport so contacted the emergency number who turned out to be her dad. Girl subsequently rang me and she was on a train heading 100 odd miles home. I said I could post it so asked her to text me her address. Text came through with literally just her full name and address, no thank you, no offer to pay, nothing!
AIBU in think that if someone is doing you a pretty big favour you at least say Thanks?!