During my first trip to Disneyland as we were waiting in line for the Small World ride, my uncle jokingly told me that there was a dragon at the end of the ride that ate the kids in boat #5. When it was our time to board I was under the impression that we were in boat #5 (not sure if the boats were really numbered). I cried during the entire ride.
A childhood belief about monsters

others believed things like this
- I used to believe that the last line of Row Row Row Your Boat was 'Life is butter dream'.— Mindless Misfit
- my brother told me that if i ride my bike with my mouth open i will swallow my tounge. Anon
- I used to believe that you had to sit in the splitz to ride a kayak! — Anna
- The Beatles song "Ticket to Ride" always came out "She's got a tick in her eye."— Kurt
- I used to believe that the pirates on the pirates of the caribbean ride would come to life and eat me!— Captain Jack Sparrow
- row row row your boat gently down the stream...merrily merrily merrily merrily life's a butter bean.— bleeslady