You are actually working at one point of the trip a box makes. Eventually all boxes have to be loaded onto a truck.
Not to say what you experience is not true I have heard from others who work at shippers just like you do and they have a different position. One person was a close friend and the others were acqaintances. There were some posts on this subject by people who work at a shipping company like you do. They tell a different story. I was trying to locate them to post.
I have been shipping reptiles for many years. Some years I have shipped as many as 150 boxes in a season. My experience has taught me that larger boxes are at more risk due to the
damage and condition of boxes arriving compared to alost zero on small boxes. I have been told by employees that smaller boxes get put into bags, are hand sorted and have less chance of being thrown, dropped, stacked or have forklift damage. Here in Atlanta boxes go directly to the airport and sit in large open air hangers for hours before being placed on a jet.
I was also trying to do a search for posts by others who work at shipping companies but have not found them yet. I did find this post but it is not from an employee at UPS, Fedex or DHL. I will get those later. Here is a post from a guy who works at a computer company.
"I work for a computer parts company that ships hundreds of PC's, monitors, printers, and service parts every day. About 35000 per month actually. About 2% of those large packages arrive broken even though they are packeged in superior, top notch foam packing, in double ply boxes. The reason why is that these packages are not handled much by humans (because the dimensions of the box mark them as heavy, even if the box is not. this is called DIM Weight)...they are moved along conveyors at transit hubs etc and often can fall off. They are also palletized, and can be moved(and punctured) by forklifts etc. Also, they can happen to be the bottom box in a tall stack of heavy boxes, and get crushed his way. With sensitive parts...we often opt to use a smaller, clamshell type boxs, with some foam inserts, as the boxes are genrally handled better. With small boxes...such as the type you would use for a book, they are handled almost exclusively by hand, and almost never experiance "tramatic" damage. Its a fact, I have been doing this a very long time."
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I still don't need no spell chack.