While not as brazen as the message left in the mystery section, the employees at the store as a whole would leave little notes and such around the break room and at the info desk. Articles about how working for a terrible boss made life worse, extra copies of information sheets for calling and complaining to home office types, Dilbert cartoons, etc. The store culture became very hostile to certain managers and most of us don’t regret it. Treat us nice and we’ll do the same. Pay it forward, managers.