In the room where you get the jar (Just after the elevators and in the following catacombs) I was investigating a corner of the room where some barrels were sitting(and hiding from the monsters). I was throwing them about and jumped into the corner. I think it was the still rebounding barrel that hit me and suddenly I was falling for about a minute. I could see other parts of the map dissapearing above me as I looked up. Fortunately the game revived me near this point after I died. I was wondering how long the fall was going to be.