Ever deal with an idiotic or dishonest seller on E-bay?

[spooky3]

I can't tell if the one I finally finished dealing with was dense, greedy, dishonest, deliberately "thick" as Judge Judy would say, a bully, or all of the above, when he tried to charge me for something I didn't bid on, and turned a miscommunication into a cascade of insults even though I never insulted him and kept saying "I don't agree, I'm not going to respond to xxx--instead let's solve the problem". Of course, you can't put all this in the feedback system because then the seller will retaliate and write lies about you. As a result people like him have a distortedly high rating.

I'd like to hear your rant about any similar experiences.