I’ve worked a few major chains in my life, and in every company Black Friday is the biggest day of the year. People rush stores and act like idiots to get a deal.

Everyone knows that every major chain gets special Black Friday shipments of the big sale items to make sure they are stocked up. What most people don’t know is that most retail chains ship “Black Friday versions” of the sale items which are more cheaply made and lower quality.

For example, if you’re looking at a laptop it’ll have make and model like, ABC Company H75-32. The Black Friday version will be something along the lines of ABC Company H75-32A. It’ll be lower quality, but usually in ways you can’t see from the outside.

Same thing for the TVs, appliances, even toys. Keep your wits about you shoppers. That extra $50 off might come back to haunt you.