my wife just reminded me of a very funny story. I ordered a bench PSU from one of the big electronics suppliers and when the box arrived only the power cable was in there, no bench PSU. so I called them up, the warehouse guy was able to confirm the shipping weight was way off, and we ended up chatting about funny shipping errors. one of their newbies had once gone to a shelf, it was empty, so assumed the shelf itself was the item and shipped it out. but that wasn't the funniest one.