Here is another true story from my childhood. This also took place when I was around preschool age.
Like most kids, I had a very random assortment of toys to play with when I was young. I also carried a baby-blanket everywhere, often draping it around my neck like a scarf.
One day a random but thrilling thought occurred to me.
My 3 1/2 year old brain had figured out how to levitate.
It was very simple. All I would need was my baby blanket and a little effort.
In my mind this was how it was going to work...please note that my unsophisticated childbrain did not yet have a full grasp on the workings of gravity (or the limitations of my upper body strength) and this made total sense to me:

It was going to be awesome.

Once I was able to levitate...I would float around to show people how freaking cool I was...
All of the other kids on the playground would be envious of me...
I would never have to worry about slogging through mud puddles after it rained.

I was going to make such a kick-ass ghost at Halloween.
I was going to be the coolest. kid. ever.
Unfortunately, I failed to be as awesome as I'd hoped.
This is the sad reality of what
actually happened:
Epilogue..this didn't stop me from trying to replicate the "levitation experiment" with a jump rope mere days later.