Even when a package is successfully delivered, the recipient may never actually receive it. Below is a video from December 2012 of a package being delivered, and then getting stolen by another delivery person. This was an iPad Mini being delivered as a Christmas present.
Having a pre-signed delivery form is not a great idea, especially when dealing with expensive electrics. Try and have the package shipped to an address that it can be securely singed for.
We suggest reading some shipping tips we provide that can assist in this never happening to you
This is another great reason to insure with Shipsurance. You ship it and we insure it!