When I was around six or so, I got the words hamper and hamster mixed up. My parents would get very confused when I told them the hamster was full, because we didn't own one.
A childhood belief about speaking

others believed things like this
- I used to think that if you were the teacher's pet, you would turn into a hamster.Anon
- When I first heard of Amsterdam I thought it was "Hamster's Den"— Bootlebat
- For the longest time I believed New Hampshire was New Hamster and that was where all the hamsters came from. — Giny
- I used to believe that all languages were just jiberish and I asked my mom why they didn't use real words.Anon
- I used to believe that scarecrows were giraffes! OK it's a bit weird, but I still get mixed up!— Rosie
- When my friend told me her cat was moulting I thought she said melting. I was confused for a while.Anon