When I was a child, I went through a Digimon phase. One night me my brother were outside jumping on a trampoline or something and we saw some little floating lights swirling around us. There seemed to be more and more of them and I got terrified cause I thought I was getting sent to the Digimon realm or something, so he and I ran away screaming. So that was my first experience with fireflies.
When I was like 2 I remember seeing an advert with a talking fish puppet that sounded like Danny Devito that scared me lmao
I think it was some life jacket safety thing.