USPS Strikes AGAIN!!
I agree with
@ragtopfury . For something like that to happen, it most likely was the fault of whoever packed it for shipping. You can't just put something in a box and send it on its way. I slide in extra layers of cardboard to make the walls of the box thicker and fortified, then wrap my item, sometimes putting it inside a smaller box, then cushion it.
You should be able to shake the box vigorously and not feel your item move within. This person obviously did not do that.