I hear those Muskrat Mustaches can bite

This evening I was out front with Erin and Noah as they were coloring with sidewalk chalk. Erin draws a face and then draws a line under the nose.

Erin: "A muskrat."

Me: "Erin, what's a muskrat?"

Erin: "It's an animal on your nose."

Me: "If you had a muskrat, where would it be?"

(She points right above her lip.)