I was pulling into a parking space at the mall when my then 2 1/2 year old son blurted out, "you're not gonna FIT there!" (There was an empty space on either side). The exchange echoed a time I had redirected him from "driving" his big push truck between the chairs in the living room (i.e. - "you need to go around, you're not going to fit there.") As funny as it sounded with just the kids and me in the car- imagine when my husband first heard the exchange. Thought I'd never hear the end of it.
I could dedicate an entire week to my little back-seat driver's running commentary!