This is my experience with my daughter's imaginary friends. She had three main imaginary friends : Meanie...mutagenic bat/rat/boy with an attitude problem, Gogonagi...a giant six foot long rat....and Silly Beaver...a tree eating rodent. What upset me most was my daughter would wack herself on the head over and over saying.." Get out of there ! Get out of there !" ...when i asked what was going on she would say " That silly Beaver jumped into my brain again!!"....
I never really got any kind of explaination from her as to how this all happened or came from or meant.
I would sort of bite my lip and hope that it didnt mean she was truly crazy or possessed or anything...so far she seems to be ok for a teenager.
A childhood belief about imaginary friends

others believed things like this
- I thought there was a beaver living in the toilet that would bite me if I wasn't ever vigilant. — Camille
- i used to belive a fever was a beaver crawling in my head i no right?— poe
- I thought for a long time that beaver and badger are the same animal— Ted Snow
- I thought my imaginary friend was real and he imagined me
I hope he still believes I existAnon - when i was growing up i had two imaginary friends. One was named Jennifer, the other was named Onion.— Tessica
- when my daughter was much younger she used to beleive there was nothing but hair in her headAnon