When I was in high school in 1959, I worked in the Sears warehouse. When I mentioned that I wanted to use my employee discount to buy a 9 drawer machinist chest, the supervisor, an old WWII Navy chief, said he would show me how to get an extra discount. He took a boxed chest and hit it on the top with his fist. Showed it to the merchandise manager and told him I would buy the damaged chest. There was a 30% discount and after I bought it, the chief opened the carton, hit the inside of the lid and it was like new. Still have it fulll of tools 50 years later.