Strings attached
One of the weird/amazing things about Walmart is that all possible products exist together in perfect harmony under one roof. You can buy a mop to clean your kitchen floor and a blanket for the horse that you’ve left outside on the lawn. Or, in the case of this example, lingerie and shotgun shells.
The thing is, I’d imagine if he had kept his mouth shut about his conversation with a random stranger about his girl’s lingerie, he might have gotten away with his deal. As it is, she saw through his scheme, and she was probably a little annoyed that he’d tried to get back up from a perfect stranger.