This was an early solution for animals refusing to back out of a trailer. Donkeys, Mules and Horses would prefer to turn around but most will back out if you make them. Just be careful they don't swing around while still on the ramp as soon as their head clears the door. Cattle would stay and starve to death before backing out...ok, that's an exaggeration but not by much. This trailer takes care of that problem especially for the SPCA guys handling animals they don't know and vice versa.
I have no idea what the bell is about, maybe because it's an ambulance.

I'm aware of the left hand Mopar lug nuts but had no idea what you were talking about in post 2.

I think one of 'em has to be left-handed.

Doesn't hardly give stuck a chance, but I like it.
Safety pins are overkill.
Where's his mask?
And I can't find out how much the thing costs (don't forget the pump).

they barely accidentally show the piston extending and pushing the wrench arms apart.   I think I get it though.