During one of my jobs I was working on a composite panel. This panel was not heavy but it was at least 7 feet long. I knew one had been bought and I had to carry it to the hanger. I asked my co-worker to carry the old one over to the plane with me so we could get good measurements from it to trim the new one.
As I handed him the old one he said, “Are you just giving me me the old one because you think I will break the new one?”
Moments later he turned around and hit the old panel into a post. He just stared back at me and said, “Well, proves you right.”