You’re missing the point. Don’t Stand under the bars when you’re putting them up or taking them down.
I've used the bar to move one bar and have another fall behind me from the vibrations.
About two months ago I reached up to push a bar the last few clicks (no bar in trailer) and that bar and the one in front of it and behind it all dropped. I have a new scar on my arm from that.
I've also been helping a guy on a forklift and as soon as he hit the dock plate a bar fell and almost hit my head.
The point is these things suck and none of use know what happened to this gentleman or anyone else. Don't blame the victim, blame the bosses for accepting this risk.
Hope your coworker is recovering Magician.