We got all of our new fixtures built, then noticed that we didn't have enough base shelves. They are the very bottom shelf, and they have a different way of attaching than regular ones. I happen to know who has a whole stack, so I run over to get some. Everyone trades stuff back and forth all the time, so it's no big deal.
I walk in, find the person in charge and announce "All of your base shelfs are belonging to us!" She had no clue. Kind of sad, because she plays X-Box all the time.