I meet my UPS driver at a multi truck pickup point often to get my packages when I am in a pinch at my screen printing shop. I can get them about 5 hrs ealier by meeting them there. I have witnessed these driver "hurling" boxes from a trailer to their trucks, crashing to the floor. They throw them up to 20ft sometimes. I have never saw them inspect a box for any markings, fragile, etc. Luckily they can't break the shirts I get through them but who know what other stuff they break while chunking these boxes around!!