Keep your tongue in your mouth.

On our way to my mom and dad's house this afternoon, we stopped at the gas station to fill up.  While Spence was outside pumping gas, the kids and I waited in the car... radio off... enjoying a few moments of silence.  And then I heard Sweet Pea from the back seat (sitting next to Babydoll) quietly say, "Keep your tongue in your mouth.  I said keep your tongue in your mouth.  [Babydoll] if you don't keep your tongue in your mouth then when we get home I'm going to take away one of your toys."

I then rectified the situation with a classic, "[Sweet Pea], who do you think you are??"