Overheard this conversation between my 4-year-old niece and a boy from her preschool class, in the back seat of the car, on the way home from school: her: Do you know what a date is? him (slowly): ...Yeah... her: It's when you go somewhere with someone. (long silence) her (matter-of-factly): But this isn't a date. This is a carpool.
(From the "Rest" of RHF)