Ever seen ball lightning?
When I was a kid I had a pet squirrel... one afternoon I was sitting in a recliner with him in my lap, out of nowhere he jumped up and darted off, which was unusual for him.
About two seconds later I heard a loud lighting strike and a fireball (I say fire, it was more like a ball of sparks or plasma) about the size of a basketball came through the sliding glass doors beside me, shot across the room and went into the wall. My grandmother said she saw a flash of light in the other room but didn't see anything else.
There was no damage to the glass or the wall....
I didn't know what I had seen for years until one day I stumbled across this image on Wikipedia. I'll certainly never forget it.
