Driving in our minivan, Mommy threw some cookie crumbs out of the window. M cried -- "Mom, don't pollute!" When Mommy declare that cookie crumbs are probably just going to be eaten by birds, M suggested "Ok. But if you throw the tissue out then it would be pollution". G quickly added "And if you throw the kids out that would be illegal".
Apparently Mommy often threaten to throw the kids out of the car if they don't calm down.