#1 Almost Cracked An Eye
Always wear safety glasses. It’s easy to talk yourself into doing something really quick without putting them on, despite the voice in your head warning you. In the middle of grinding something, I stopped to put on my glasses. When I continued, a chunk of metal flew up and cracked the right lens. Spidey senses: 1, Murphy’s Law: 0.
Credit: Turtlemonk92