Tree related 2 things immediately come to mind:
Clinging to a tree, inching by high voltage wires, and feeling the swaet on my back tingling from the charge.
Topping out a large pine (for here) between 2 houses, then catching the said top on the spar i just cut it from at 50' loaded with pulley sling and line; with a man controlling the rope that couldn't follow directions on the ground. The idea is to let the line 'run' the load to the ground, to catch top, and just not let it accelerate. i shoulda waited for my regular man the next day to do this, he had to take the day off. The guy, l;ocked down on thel line, slamming it against the spar i was standing on, kncoking my spurs out of the wood, and bruised my hip pretty bad as my life line held me to this pole flailing back and forth, slaming me around into it. The 5/8' Arboplex broke, then and pole thru me around some more from the sudden change in pulls as the top released when the rope broke.
But, i don't consider that nuthin'now; i gots faith i'll top that stupidity before i'm done; so i consider the hunt for the my stupidest thing to be a work in progress, with more coming attractions!