When I was a boy there was a saying for hunters that went like this; "Never mix gunpowder and alchol." I thought for the longest time until the proper meaning was explained to me that hunters would take the bullets out of the casings and pour alchol into the gunpowder and replace the bullets to make a more powerful cartridge.
A childhood belief about excursions

others believed things like this
- I used to believe that acorns were bullets— Andrea
- i used to think guns shot poison bulletsAnon
- I used to believe you could pour lemonade in a pan, put it in the oven and make lemonade cake.— wumpmugg
- For the longest time I thought 90210 was a sitcom Anon
- i thought that you had like a box or something inside you to hold your soul for the longest time— jill
- I thought that Samson and Solomon from the Bible were the same person for the longest time...— Laura G.