Surprised Mouse Makes Funny Face [Video]

I wonder if this mouse heard the cat in the other room coming!  Bruce and his cats probably got all happy when they smelled this mouse.

First, I don't like mice.  Second, I know they like cheese!  Third, I know what a trap can do to them, and I am not scared to use it.

This kind of reminds me of that cartoon "Tom And Jerry!"

Question: What is the difference between a mouse and a rat?  Anything?