This episode reminds me of a BMX bike that I sold to a flipper (didn't know it at the time) a while ago. He tried some aggressive low-balling nonsense after he turned up to look at it, and was very hostile when it failed.

He bought it anyway, then posted it for sale within an hour of buying it for 3x my price (which was just silly, it wasn't worth it by a longshot,) embellished the description (ok, starting to get my goat,) and directly linked to my self-hosted photos. The last bit really ticked me off, so I replaced the images with something unsuitable for daytime television*, and he was flagged off within minutes.

* I know, I'm a horrible person...