Some retailers will inform you that they break the seal on the packaging to ensure that all the package contents are in the package before the customer walks out the door. If they are a good retailer, they will get your consent and then open the box right there in the store, just to make sure you don't go home and discover you don't have the AC adapter or recovery disks. If they are shady, they will hand you the box already opened and claim that it wasn't a return and that the contents should all be there.