Erin's Finger

Lani noticed 3yo Erin doing something with her fingers - either biting her nails or peeling off the skin.

Lani: Erin, what are you doing to your fingers?
Erin: I don't know.
Lani: Huh?
Erin: Anything is possible. Maybe I'm taking off my finger.

Didn't expect that from a 3 year old.