In my haste to ship out all the coins I sold last weekend, I accidentally shipped one that had NOT been paid for. Worse, I went ahead and left glowing feedback for the guy, including a little phrase that said "Thank you for your fast payment!" Normally, all that wouldn't be a huge big deal because most of what I sell goes for $20 or less, but this particular item was north of $300!
I didn't realize my error until Tuesday - more than 24 hours after I had shipped the coin! So I wrote to the guy and explained what had happened. His payment showed up early Wednesday. Whew!...and thank you gtoracers747!