It was one of three things.

[Steve]

My wife has a coffee maker with a built in grinder you can program to start at a set time. When it starts up it makes a racket. Somehow I guess she set the damn thring wrong one night. I came out of a perfectly sound sleep to armageddon raging and had no idea what the heck it was. I about blew the thing away with the 870 before I realized what was going on, then I was tempted to blast it anyway when I did figure out what was going on!