Normal, but I have seen it move. You have to be working it, however...
I think I was climbing mountains at the time. It moved a hair. I have no idea if it'* insensitive, or if there'* a REALLY good fan. Frankly, it'* very reassuring...
Me: "Hmm...temp gauge is in the same spot. All'* right with the world."
Hailey: "There'* smoke coming from under the hood."
Me: "Nope. Temp gauge is right at 200. All'* right with God and the world..."
Hailey: "The floorboards are melting..."
Me: "Would the car lie?"
Me: "Look! A ricer!"