Landon: Mommy? What's that thing that hangs off the side of the car and goes like this [stretches arm out straight in front of him and lifts it up and down a few times]
Me: The antenna?
Landon: Oh! So the car can feel where it's going! Like a crab!
Me: [stifling laughter] No, sweetie, it's for the radio so the sound comes in clearly, but I do like your explanation better!