not on here but on ebay my paypal account had reached it's limit of transactions so paypal suspended it till I put my bank account details. The man in question couldn't pay me till I sorted it so I sent him an email explaining the problem and that I'd fix it as soon as I could.
I recieved an email back filled with bile and anger and venom. It was like someones brain dumping the worst things they had inside it for about ten minutes. It wasn't even clever, just crap insults.
I decided that was the end of the deal but a few days later I got a calm email from the chap asking when we were going to close this thing….
After some to and fro I agreed to meet and sell him the bike but took a mate along as muscle. The guy met us on a roundabout, little fat chap with these thick glasses (thicker than mine anyway), looked like he'd shit if you said no to him. Brilliant!