When I sense A hostile or very difficult buyer and most sellers know when they encounter this rare breed, about 1 in 100. Then if they never leave feedback then I dont care but if they email me with the threat to leave me an unreasonable neg then i tell them" go ahead" and I will leave you one too, I have only had negs left from one buyer and one from a ghost buyer(new account just to leave me a neg) So i dont worry about it, I even had a buyer so mad that i did not discount multiple items enough that he left me a pre neg before i could even ship and right after he made 2 seperate paypal payments so that It would cost me more in fees!! And no my add did not say anywhere that i even combined shipping so he assumed that I would and I would very generously. It was a lkive and learn and i wont say names but he is a memebr here and my Ebay seller account name is neonnites so you can figure it out for yourself!! I dont harbor any ill will now as it was said on an earlier post!! there is life outside of Ebay!! Feedback is a funny thing and I often find that people I know dont leave a neg for fear of a return neg and that compromises the entegraty of the entire system!! So take Ebay feedback with a grain of salt!!