My sister and I used to believe that you could drink petrol because everytime we stopped at a petrol station, our Mum would say "I'm just going to give the car a little drink of petrol because its getting a bit thursty".
A childhood belief about cars

others believed things like this
- When I was young I thought that after pulling out off a petrol station the car would go faster— Amine
- I used to think that if you mixed a diet drink with a regular drink, it would explode. Anon
- That you had to be a male to drink beer.— andrei gaspar
- I used to believe that you needed a prescription to drink Dr. Pepper.Anon
- I used to think it was illegal to drink hot chocolate in the summer. — Samantha
- I used to think it was illegal for children to drink coffee— C.W.