hehe, well back when my oldest was around 4, I had this mask.. It was a glow in the dark skeleton mask. So I would come downstairs and hit the light switch, the downstairs in our old place would turn pitch dark. So down I come into the room with the kid and my wife sitting in the suddenly dark room, and all you can really see is the glow in the dark skull floating towards ya. My wife and kid would SCREAMMM, lol it really scared the crap out of the kid, but my wife would kind of bug out on it cause it did look freaky and she would join in the screaming.. then I would turn the light on lol