So I have a third set of teeth, and apparently this is pretty rare.
A few years ago a premolar from the 3rd set decided to show itself, but I already had a tooth where it wanted to grow. So it grew inside my mouth, towards my tongue. I thought "That's odd!", cut my tongue on it a few hundred times, and thought nothing of it for a few years.
Now, a few months ago, it started to feel ignored. It wanted attention, it didn't like the tooth I already had in its place so it decided to play rough. It's currently knocking my other tooth out of the way, and there's not really much I can do to stop it.
The tooth in question is actually a premolar, so it won't be that noticeable that I'll be missing a tooth there. But the embarrassing part about it is that I won't actually be missing a tooth, the 3rd one would still be there and it's just at the worst imaginable angle possible - the other side of my jaw. To give you an example, my tongue actually rests on it. It's that far in.
I'll have to arrange to see a dentist about it soon, hopefully it won't be too painful. But either way, this tooth is coming out soon and it's :(
I imagine from an evolutionary standpoint, 200 years ago, this would be extremely handy. Today, not so much...
Dang modern world.