When I would always drive in the car with my mom when I was little, I would have this imaginary friend that would do backflips only on the tops of the houses that we drove by. My friend would just do continuous backflips from where the roofs form points.
A childhood belief about imaginary friends

others believed things like this
- 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 - I used to believe that self drive cars actually drove themselves!Anon
- My little sister's imaginary friend was Kit the talking car from that show Knight Rider.Anon