A couple of nights ago I awoke to the noise of a loud high pitched screech. Thats all I have for details really, just a screech. It kind of sounded like a power drill drilling in a screw too far into the wood where it just spins and screeches. For the past week my dad has been using a drill to put up a wall in the room next to me, but I know for damn sure he wasn't drilling anything at 4 A.M.

Anyone know what this could be/mean?