Faces in the sun

As far as Paranormal activity, Luckily, things have been fairly quiet around here lately.

Yesterday, My son was just starting to go down the hall to his bedroom when he stopped and stood looking at the floor, finally he said, "Mom, can you come look at this"? I got up and walked into the kitchen, before I ever got to him I saw what he was looking at. There was what appeared to be sunlight casting a strange shadow on the floor. It was creating a hideously, evil face.This face was pulsating as if the sun light was filtering through leaves on a tree that were slightly moving. I called Marty over to look at it, he and Chris then tried to debunk it but there was no where for the light to be filtering in at that spot. Just as we all gave up trying to explain it, it was gone. It was there one second then gone the next. I can't say that this was paranormal but it sure was strange to just appear and vanish like that.