Brought in 6 pairs of my wife's more expensive high heels to get the worn out tips replaced. When I went to pick them up, they only had 5 pairs. He couldn't tell me which shoes were mine. They guy acted like it was no big deal that they lost a pair and made statements that showed it was typical for them to lose a pair.
They don't do any tracking of the shoes other than marking the quantity of shoes you bring in. They don't tag or mark the shoes in any way, they don't track the brand, so its obvious why they have these losses.