NHLoser
If you’ve ever shopped for sports jerseys, it’s a pretty good idea to assume the employees know a thing or two more than you do about jerseys. Don’t go into a store with the intention of getting into an unnecessary debate about how jerseys are made and how to maintain them with the employee who was thoroughly briefed on the subject matter.

This woman would always get the last laugh. She had the paperwork to back up every claim she made, and she got to see them squirm uncomfortably as they checked their items out. Thankfully, none of the customers felt the need to explain how to work the cash register.