While I don't regret buying it, at least not yet, I just had my first "bad" purchase. I picked up a consignment gun, a S&W 622 from Young Guns. They made me sign the standard "this is a used gun, it may be broken, we don't know" agreement, which is pretty standard on the purchase of a used gun. The majority of my inventory has been purchased used, and that's never been an issue.
Well, I guess my luck had to break sometime. My semi-auto model 622 is actually a single-shot. I won't bore you with details, but after a disappointing first day at the range and the subsequent teardown and inspection, I can see that the gun's previous owner buggered it all up. Parts of the action are missing, and parts are damaged. I don't know if the person was just an idiot, or was trying to do customization. Whoever they are, I hope they end up with debilitating stomach cramps and uncontrollable diarrhea.
I think I can order replacement parts and have a decent chance of making the gun properly operational for under $30. First, I'm going to call S&W and see what they'd charge. I'd hate to get $30 in only to find out that the moron had goobered up something else I hadn't found yet!
I can't conceive of the mindset of a person who would render a firearm inoperable and then put it up for sale (at the high end of the gun's value, I might add) without any sort of cautionary note to the next owner. I would like to say two words to this individual. I'll wait until we meet, but for those who are wondering, the words are NOT "happy birthday."