Sometimes downed wood can get you. Stepped on some rotting timbers near an old mine, had one break beneath me and I rapidly postholed into the pile. Fortunately nothing shifted and I stiffened my body so I wouldn't fall over and snap a femur. Was a bit more careful getting out.
@RedRoxx44
A guy I backpack with at times had something similar. We were going through a canyon with a bunch of downed wood due to it being narrow and whatnot and I don't think either of us knew quite how deep that area was because it was wall to wall wood; he took a step and was balls deep all of a sudden. Definitely shook him a bit.
Trees!! The menace of our time. When will we act to eliminate this scourge? Won't someone please think of the children?!?!
Seriously though, people really ignore a lot of hazard trees and seem to think they are never a threat. Lots of rotting trees and hazard trees around here overhang roads and houses. People seem oblivious.