I ordered a hard drive as an upgrade to my laptop. It was shipped promptly, but was sent in a flimsy padded envelope!
According to Dell's Service manual hard drives are to be shipped in foam padded boxes. There is a good reason for this, as hard drives are sensitive to pressure. On the hard drive shipped is clearly stated to not press on top of drive.
I have contacted Dell to get an explanation for the shipping method, but so far I have not heard from them.