Clay Pigeon
Shooter
While I would not embarrass my kid by doing this I might do it for myself.
Walk in with my bag and a copy of my receipt for the incorrectly fitting jeans. Stand in the middle of the clothing department, drop my pants, and try on pairs of jeans until I found the ones that fit. Proceed to leave the store and on the way out hand the bag with the jeans that don't fit and a copy of receipt for the wrong size to the greeter and say Have a Nice Day. As I understand it their Loss Prevention people don't chase criminals so they should not chase a customer simply exchanging an item. Of course I would wear my mask.
Dont kid yourself...What you have been told is not true...
And when you dropped your pants in a Walmart you would be rapidly corraled and then the law would he called and you would be trespassed from every Walmart and Sams Club.