Colonel John Davis is an intrepid explorer!
Still... It is probably a good thing that no one is watching as the old Southern gentleman wrestles his way down the passageway.
Mud sticks fast to him. Junk snags, bangs and bumps him. If his flesh was warm and living he would be torn and bleeding. As it is, he just scratched and cut.
And stuck before the more solid mass of the plug into the inner chamber; it is simply more solid than the rest of the rubbish and given his choked surroundings, Davis can't really bring his strength to bear against it.
Davis suffers 2B from assorted bangs, prangs, and cuts - if he were alive he'd be bleeding, but given the strange nature of Kindred Vitae, he is not.