Even when the ad campaigns are slick and the branding is savvy, we all know that most big corporations are hiding trade secrets right under our noses. From our favorite fast food to the places we stay on vacation, there’s a lot more going on behind the scenes than meets the eye.

If you’re sick of all the mystery surrounding company policies, you’re not the only one. A recent Twitter thread has allowed former employees of all different types of industries to reveal the things that businesses don’t want us to know. There are more than a few damning exposés here.