An idea on npcing stuff...

Hopefully, this isn't an old/bad idea... Well, I know npcing stuff by mistake has happened to us at least a few times, but would you think it'd be good for nexon to implement a delayed expiration list when you npc something? When you npc something, it could appear on another tab for a set period of time. That way, if you accidently npc something, you can buy it back. Could also be the option for other players to buy the item if they want from the noc... This is just a random suggestion though. Yeah I know it's sometimes the fault of being lazy or not careful, but don't you just hate it when you npc something by mistake... o.o