Back when we were all buying from Gun List, aka Gun Lust: I made a deal on a 28ga AyA #4 from a private seller in TX. Gun came exactly as described. I got a good deal, remembered the guy's name in case he might advertise anything else. Well, he did. Belgian (don't even remember the maker, but not a very high dollar gun) 20ga. Called, spoke with him, said he'd been sick, but everything on the gun sounded straight. Agreed on the price, sent a certified check. Gun arrived. It was indeed as described . . . except it was a 16ga. I wasn't all that unhappy because I was shooting 16's a lot back then, but in this case, I'd wanted a 20. So I called him up. Got a relative, found out he'd died in the interim. I expressed my condolences and did OK when I finally sold that 16.