The last place I worked had the same UPS delivery guy for years. He was never known to be a gentle person when it came to his deliveries. One day I walked past his truck as he was unloading. A box flew out the back, hit the concrete floor. You could hear whatever was inside break into a million pieces. I said something to him along th lines of "Someone's not going to be happy when they open that." His reply was typical for him. He said, " F+++ 'em. Let the insurance pay for it."
I guess what I'm saying is be careful when packing, but if the wrong delivery person gets it..."