Have you ever noticed in The Colonel's Bequest that you can go into Ethel's room and talk to her at the start of the game, but then you have no reason to ever go in there again?

If you do go in there later, nothing's changed (unless I'm completely missing something) and there are no dead bodies to be found. Every other location at least has something going on, or something that changes, with the exception of some of the outside screens.

You're right about Ethel's room.

Although, Wilbur's room is also pretty useless. You see the bag in the room. That's it and that's all.

Sometimes, Clarence's body will be on the bed in Wilbur's room, instead of in the bathtub.