So one day, our teacher was busy with some stuff so we got a substitute teacher come in for class. She went off to the desk and sat down, and within 3 minutes she was out of the classroom and going to the hospital

"How?" You ask. Well, no one told her that there was a rusty nail sticking out of the desk and very certain to impale one's leg if not paying attention.

And within 10 minutes a substitute substitute teacher came in and probably was thinking what on earth allowed the chance of her walking in.

I don't think the nail was ever removed, but I'm sure our teacher came back to class the next day wondering if her class from the pits of hell were the ones responsible for yet another mess.

Don't play with rusty stuff, kids.