Why would ceiling holes glow in the dark?

Question

When I woke up this morning it was still dark. I noticed that where previous renters have driller holes in the popcorn ceiling, glowed in the dark. Why would holes glow in the dark? Is that a sign that it's asbestos?

Answer 1

Asbestos does not glow in the dark.  I think you are safe.

Answer 2

Definitely not a sign of asbestos, perhaps uranium (just kidding). Is there another room above you or is it the attic. If it is the attic perhaps there is a light on up there.