Worst I can remember was shutting off the main on a 150hp electric motor. The motor flamed on a conveyor belt, I witnessed the flames :lol:. It was a wet morning after rain much like today. Handle on the disconnect metal, concrete wall I was balancing myself against wet. 220v hand to hand as it disconnected. Numerous times push the start button on 3 phase starters and see the box with the mag starter in it across the room eat it's lunch :lol: