I used to think that when a business put "Support EMS" up on their sign, that it wasn't a message intended to support the local Emergency Medical Service, but that the business needed help, thus they were asking for "Support 'ems" (like support them). I believed this until I worked up the courage to ask my mother. Needless to say she set me straight. To this day every time I see one of those signs I feel embarrassed...
A childhood belief about in the street

others believed things like this
- I believe animals are our best friends. When we are sad or we feel lonely, they are there to support us.— Rosa Saito
- i used to believe that scaffolding was used to support buildings when they were having work on them.Anon
- Having seen enough red octagonal STOP signs in my time, I used to look out for green circular GO signs.— Gary
- I thought for the longest time that a No Standing traffic sign meant no person should stand near that sign.— Shannon
- I used to believe the Do Not Pass signs on the roads meant you were'nt aloud to pass the sign. I was 14.Anon
- I thought if someone worked full time it meant they worked 24/7 and never did anything else!— andalite