My little brother used to have a "Friend" called Logan. At the dinner table he would talk about Logan. My mum went to his Nursery once and asked if there was a boy/girl called Logan there, but there wasn't. So thats why i think it was an imaginary friend.
A childhood belief about imaginary friends

others believed things like this
- My brother was terrorised by an imaginary charecter called anorak doo-dah— Corin
- My friend thought butterfly was actually called a 'flutterby.'— BlutterBly?
- I used to have an imaginary friend named Mr. Nobody. He would protect me from my imaginary enemy, Bad Elmer.— Kdees
- my aunt used to have an imaginary friend who instead of having blood had 7-up in her veins.Anon
- When I was about 6 or 7, I had an imaginary friend, who left for ice-cream one night. He never returned.— His name was Jimmy
- I used to believe in my imaginary friend dooodle.
Doodle was a stickperson and was always smiling.— Samantha