I used to hear adults using the phrase "sectarian violence" in relation to Northern Ireland and think it had something to do with garden secateurs. I also thought the "Cod War" between Britain and Iceland in the 70s was some sort of battle being fought by the fish themselves.
A childhood belief about politics

others believed things like this
- When I was young I thought the IRA was like the IRS and that Ireland was overrun by irate tax collectors.— jhager
- I used to believe that a fish cake was a fish in sponge and coated in icing. I believed this until I was 9.Anon
- I thought Jedi fought with Life Savers... I never questioned it either! Anon
- i used to beleive the ice cream man was a fish man - becuase i hated fish.— jordan
- Burned fish fingers ment the fish was from the black sea.Anon
- i used to believe the white part in fish meat is because of the fish's milk— Kim