A human tooth that fell off a shelf above my head while I was reaching for a book at the top of my bedroom dresser. I can't imagine how it got there. Because everyone knows I keep all my human teeth in my jewellery box.
After all, I'm not an animal.
On an unrelated note:
If anyone knows what to do with almost 50 baby teeth from 3 different children, let me know. Asking for a friend.