> clearly, if you can't stomach the stupidity and nastiness of humanity, don't sell to the average human. It's like getting angry at mosquitoes because they bite you, it's the most useless reaction ever. Worst, those particular mosquitoes give you money and you are not allowed to kill them.

This is gold! ;-)

I sell a little object on Amazon; a person returned it with an angry message (non public) that explained that it didn't work, and while explaining it, clearly demonstrated that she didn't understand how to use it.

I wrote her back to say I was sorry of what had happened and that we would try to do a better job of showing how to use the object (which we did).

She didn't reply -- but bought 2 the week after...