I went into a basement, turned on my flashlight, and opened a door and saw smoke inside the room. Immediately closed the door, went back up the stairs, and attempted to pull the dresser over the stairs. Unfortunatly, it stated that the dresser collided with something. That something being the stairs. So i thought it would be a cool idea to be able to move furniture over stairs to conceal, or barricade them. They could also add hidden passages under shelves. Depending on your perception stat, you could walk by a book shelf and get a message such as “you feel a cool breeze coming from somewhere” or something like that.
That would be cool. Though it would change some gameplay features. Also, the thing you would use to barricade a door or stair would have to have some sort of durability.