#1 is literally impossible.
#2 is is actually possible, and totally BS. The game isn't technically used, but it has been opened. They open one copy of each game and put the case on the wall so people will know they have the game but nobody will be able to steal the contents of each game. If there's only one left, that's the one you get, no matter how fucked up the case might be. It sucks.
Personally, I always make people aware that we only have the shelf copy available before they buy it. Some choose not to (I never do myself), but most just go, "Hey, if it works..."
#3 shouldn't happen, but it does because of selfish employees. However, I don't remember getting any Banjo pre-order bonuses at our store...







