When I was young, my imaginary friends were usually from Sonic the Hedgehog. For some reason, I would always make bets with them, and when I did, Sonic would come out of this invisible door that appeared in thin air and would give me money if I one the bet (This mostly happened in the bathroom). I sometimes still do this today.
A childhood belief about imaginary friends

others believed things like this
- I used to believe that Knuckles (from Sonic the Hedgehog) was an enchilada.Anon
- When I was little, I believed that sonic booms were from airplanes passing gas! haha!
— coconut - I used to believe that sonic booms were huge explosions that only occured at the very tops of mountains.— Jessica Tinch
- My sister told me as a child that ravioli was 'hedgehog' meat.
Still can't eat it today.......— Sal Myers - Yesterday I realised that invisible ink doesn`t make me invisible.— Jonathan Eleven years old
- I used to belive that if you went up to an ATM it would just give you money out that is not your own money.Anon