Do you you have a cat by chance?  I have a Siamese.
Yes, I do. My cat is a great companion because she helps hunt small vermin around my yard.
What kind of cat?  Does she leave the captured vermin on the doorstep or does she eat them?
She is a polydactyl cat, though she's a mixed breed. She loves to eat the small vermin she finds.
What's a polydactyl cat?
It's a cat with a physical anomoly that gives them an extra toe on their paws. So it looks like they have thumbs. Their paws look like mittens. 
Wow!  Like a person with six finger!
Yeah, exactly. So my cat has 20 toes instead of the normal 18 due to her "thumbs."