User blog comment:MarkvA/Skyrim's Most Wanted Features and Fixes/@comment-82.42.162.68-20111206012541/@comment-174.113.64.123-20111210051336

There is also at least one dungeon (a forsworn one, can't remember the name off the top of my head) where there is a pressure plate on the table and you need to place something on it to continue. While not a heavy object, its still the same mechanic, and if used once, its almost certainly used in other places.