“”Walmart and Best Buy check your receipt at the door; you know that going in.””
They only check some people, Walmart for instance has never checked my bags. ever.
They check mine frequently because the idiot cashier forgets to demagnetize the anti-theft stickers and the alarms go off causing a scene and a boring unnecessary wait for another blue vest-wearer to fill out some magic form V-E-R-Y S-L-O-W-L-Y in longhand.