I notice pretty much on a weekly or bi-weekly basis that we have transactions go sour on this forum whether its the buyer or sellers fault. I was on auto forums here and there when I was into drag racing cars and whatnot, I think I recall one or two for the couple years I was on there. I know other on here frequent different forums with classifieds, is it common there for bad transactions or a rarity? I am hoping its common and not just a pool community thing. I have seen some great things done by the members here, we all try to band together to help so I know there any many good people on AZ. 
