What stupid things have you done?

Billy: Using acetylene cutting torch

Leanna: Totally mind surfing ... why is the sky blue? why do people like Fords?

Out of the corner of my eye I see something drop to the shop floor. As the then-assistant and one who is closest to the shop floor (he's 6'5, I'm 5'0), I bend down, grab it, pick it up and try to hand it to him. It's a 4" long piece of glowing red hot steel ... stuck to my fingers. I won't repeat the word I said just then as it wasn't very ladylike, but rest assured I didn't repeat that stupid move ever again.