Could have been a variety of things. If it was bulk (over 70lbs), it could have fallen off the bulk rollers. People who bring bulk to the semi could have just thrown it down at the base of the semi. Could have been a little person loading the semi and was flipping it til they got it to spot they wanted it. Could have been too much weight in a wall. Load straps weren't properly used. May have been too heavy for the person who put it into the delivery truck so they may have tossed it. Or the driver just kicked it out of the back of the truck because it was too heavy.

I use to work at UPS, so I know pretty much anything that can happen. I got a lot of busted crap coming into the truck I was loading. No one really cares either. Just want to finish their job and go home.