A buyer shouldn't behave like a buttonhole (<==spellcheck changed it
) when he doesn't even have the item in hand yet. It's stupid since at that point the seller still has the power to tell them where to stick it. After the buyer has the item in hand, he STILL should not behave poorly, but it's not quite as stupid to do so. Bottom line - if a buyer OR a seller behaves like a jerk, it kills their ability to do future business with that person, and it reflects very badly on them here in this forum. Given all of that, even if the seller adheres to "a deal is a deal" as some are suggesting, things aren't going to work so good in the long run for the offender. Is it really worth it to make a few extra bucks?
But I think David's idea about moving to Russia wasn't a bad one.