(plurality opinion).  There was simply no evidence of causation.  In contrast, in each of the cases relied upon by appellant there were circumstances from which one might reasonably infer that the dangerous condition was at least a cause in part of the death.  For example, in Schulz v. Pennsylvania Railroad Co., 350 U.S. 523, 76 S.Ct. 608, 100 L.Ed. 668 (1956), the deceased's partially unclad body, flashlight in hand, was found in the water near a pier adjacent to the inadequately lighted tugs with "some ice" on their decks where he was required to work as part of his duties.  The clothes missing from his body were found in his room on the tug.  From these and other circumstances, it could be inferredProper functioning of the human shoulder is in part governed by the rotator cuff muscles. These muscles originate from scapula (one of the three shoulder bones) and attach to the humerus via fibrous tendons as they approach the outer aspect of the shoulder thereby surrounding the anterior, superior and posterior of the shoulder joint. The motion of the shoulder is facilitated by the contraction of rotator cuff muscles which pull the rotator cuff tendons. Thus the rotator cuff allows movement of the upper arm for activities such as reaching and throwing.
Disorders of the rotator cuff, particularly tears of the rotator cuff tendons, can cause significant shoulder pain and disability. Young athletes, middle-aged workers, and a substantial portion of the elderly population can suffer a rotator cuff injury which