My old buddy Nate who deals with me in sports cards is a regional manager at one of the locations in either Bentonville or somewhere close in Arkansas.....People used to this with sports cards, pokemon, and other collectible cards
People would steal the packs and then fill them up with socks, pantyhose, and anything else u can imagine and return them to the store and get a Walmart Giftcard.......And then what happens...Rinse and repeat
Nate said they would get pallets and pallets of these resealed unopened boxes until finally walmart got smart and stopped doing returns on any sports or other collectible cards.....Some of the local walmarts in my region stopped carrying cards altogether
Nate said for fun one night at a company function him and other employees to prove a point opened up at least 100-200 of these boxes and u guessed it.....Everyone one of them were resealed