Light Fixture Makes Noise When Turned Off?When I make this query, at the top of the list are things about the paranormal and I want science. I sleep in my lift chair because I broke my back and can't lay flat. Every time I'm about to doze off I hear this sound like a pebble is being thrown every so often at the light fixture in the ceiling, yet, when I look, there are no pebbles, obviously. No bugs flying around hitting it, either.