Wow - great responses!
I was kind of angry with myself for starting a 'whiny' thread like this, so I have avoided the internet since I posted it
But seeing your responses, I'm glad I posted.
Today I had some additional issues with ebay, and I wanted to post the results, as I think it could help some of you. But first - thanks for your stories. I had added a line similar to what ctownboy suggested, but I liked his so much that I copied into my listing word for word.
I agree with Aquarian Sports Cards' method of blocking the person before taking any action - I do the same as soon as I sniff the beginnings of trouble. I realize that you make more money if you put up with anything, but I would rather be less wealthy and have my sphincter intact.
I'm about to start a thread on how to deal with the new fees popping up for using listing designer. It's not pleasant, but there is a solution.