Middle Son was up and moving around in the middle of the night last night. I heard him, but since he does this occasionally and we haven't had any major problems for a long time now, I didn't get up to check.
When I got up in the morning, the trash bag had been taken out of the kitchen trash and was sitting next to the recycle can. Middle Son takes the trash out and really seems to enjoy doing it.
I think he tried to take the trash out, but couldn't get out the front door.