I used to believe that the saying, "don't drink and drive" meant all drinks. So one day when my mother started up the engine with a can of diet coke in the cupholder, I looked at her very sincerely and said, "Mommy, you know you shouldn't drink and drive." SHe cracked up.
A childhood belief about cars

you weren't the only one
80 of you believed this
- I used to belive that it was Illeagal to drink ANY beverage while driving, not just alcohol.— Emma*
- I used to think that the dangers of drinking and driving included soda, juice, milk, or water.— Rick
- Don't drink and drive! Literally. I would fuss at the driver if they had so much as a coke in their hand.
— Élistariel