Some fool won an auction that stated in HUGE RED LETTERS, do not bid without contacting me (eBay removed the pre-approved bidder list function)...
And arbitrarily, because nowhere did it state shipping costs, gave me their high bid plus $3 for shipping. WTF?
Turned out, this person got really mean when I called them out on their mistakes, emailed me all kinds of nasty things.
So I said f-it and just stopped replying, as I was actually for once being courteous because I still wanted their business.
Turned out further, she was 14. Which definitely put her choice of verbage in perspective. Googling her ebay name got me a myspace page that would choke even a blind man. AnD sHe TaLkEd lIkE dis, man was she a friggen idiot.
I refunded her money subtracting my fees from PP and ebay the first day of our correspondence. 2 weeks later, she asks for a refund. I ignored it.