[rimunroe]

My dad was a machinist when he was younger. My siblings and I grew up with a well-equipped home shop, including a table saw, a drill press, a milling machine, and my dad's pride and joy: a two ton metal lathe. He drilled into us the importance of safety for all the tools, but the most vivid lesson was the story about the drill press: When he began his apprenticeship, he noticed a large photo on the wall of the shop of a long pale stringy thing. He asked what it was. It was a tendon which had been yanked out of the arm of someone whose hand got caught in a drill press. I still think about that whenever I use a drill press.

[WalterBright]

In metal shop in high school, there was an 8*10 photo on the wall behind it of a long haired teen with about a third of the hair yanked out.

My dad (military) never did like long hair. He said it was just a convenient handle for someone to pull back your head and cut your throat.

[Zandikar]

Yep, a common motto in the machine shop is "If it spins it wins"