Mike,
If your talking professionally now, been there done that, five times over.
Bent down to pick up something, backed into a light rig, knocking it back, me forward.
Tripped over a sandbag only to stabilize by grabbing a unchocked dolly.
My favorite hot glue story...We were shooting in a unoccupied office building in Harlem. We had set up a small office as a second shop for some touch up and on set assembly.
Hot Glue...fire alarm...FDNY...2 hour shut down...$2500 fine. Repeat 3 times.
I don't think I ever saw the production manager again without a copy of our contract in his pocket.