Kids, watch out when you slam the car door. Make sure any of your fingers are not in the way.
You might break a bone and need surgery. For real.
(No that’s not me it’s Tarquin. You’re a brave man.)
On a more serious note, don’t sleep with your arm hanging over a chair! You could get a compressed radial nerve and paralyze your hand like what happened to great guitar shredder Dave Mustaine. Fortunately, he was very determined to getting back to his Megadeth glory days and managed to recover fully.