In highschool, I worked in a warehouse for a major shipping company, loading semi trucks with packages. I saw a lot of people who didn't care or would get frustrated because of the work environment and start throwing packages, stepping on them, disregarding "fragile" labels, being rough with packages that obviously contained high value stuff like laptops and tvs.
1. If you ship something, make sure you package it with sufficient bubblewrap.
2. When a package is delivered to you, that box is FILTHY. You should probably wash your hands after opening it and do not set it on your bed or kitchen table,