Be careful out there!

When I was in the Navy, NAS Miramar, I had a part time job at the auto hobby shop. One day I was out in the lot, and here was a guy laying under a 57 Chev working on it. Now, bear in mind that when you checked in you got a shower curtain ring with a number of (10?) "chits" or tags. If you wanted an item from the toolroom, you traded a "chit" with your stall number on. You could easily get a jack or jack stands, other tools

BUT THIS GUY had the 57 jacked up with a pair of bumper jacks, each jammed up against the big "tits" on the bumper

I just reached down and grabbed his ankles and skidded him out of there

This was a civilian job, so I was out of uniform. He had no idea I was an E-5 and he was an E3. He wanted to fight.

I told him he had two choices---leave, or go up to the tool room and get some jackstands. And if he wanted trouble, I could fix it so he could not come back.

Last I saw of him, he was headed for the toolroom
This story got my memory gland going... We used to use bumper jacks to move a car sideways...as in getting a tire up and out of a small ditch. We would jack it up and push the car over. VERY dangerous! But the same movement can happen with any load suspended on a jack or even a jack stand.

When I worked at the power company, any object unless it was considered "cribbed" was considered a suspended load and not only could you never put a body part under the suspended load but you had to stay a minimum of 1 foot away for every 3 or 4 feet it was suspended. This rule was adopted after a 525 ton generator rotor at Arkansas Nuclear One caused it's temporary overhead crane to collapse, killing 1 and injuring 10. In the photos taken just prior to the accident you can see bystanders standing everywhere in what would be considered the impact zone should the crane fold, as it did. Dallas crane supplier involved in Nuclear One accident in 2013.