I picked up a piece of 1" x 10" x 10' steel at the local steel yard and had it loaded by forklift and sling into my truck. As soon as I got on the road, I hit a bump while accelerating and drove out from under the bar that was floating in the air. I thought I might be able to load it but I couldn't even stand it up on edge. I had to get one of the guys at the steel yard to drive the forklift 1/8 mile down the road to load me again.

A guy working for me dumped 40 pieces of 1-1/2" PVC. He came to a stop while turning left across a divided roadway. The PVC all slid off his ladder rack in one perfect pile and landed in the median. I happened to be driving the other way and saw it happen just in time to swerve onto the median and help him pick up the pipe.