When I was little, I used to imagine a number of things, dogs, cats, pokemon, cheetahs, etc either running alongside of or riding in the back of my dad's truck
When I was little, I used to think pegasus [not unicorns, why IDK] and vampires were on the same level of being "bad" or "scarey" as each other, even though I never told anyone
When I was little I used to think if I planted an avacado in the ground right under my oak tree that had been sucking up all of the water and killing our grass to the point it was a dirt patch that it would grow into a tree. [Kid logic]
When I was little, I thought dogs actually spoke to each other in a human-like language where each bark meant a word and so I would bark at my pets and my relative's pets.