In Pennsylvania State Police v. Klimek, 839 A.2d 1173 (Pa. Cmwlth 2003), the Court held that the plaintiff's claim did not fall within the real estate exception because there was no dangerous condition of the cell that caused decedent's death because he hung himself. Because the dangerous condition must derive or originate from the Commonwealth property, the shoe lace from which decedent hung himself did not qualify as a dangerous condition.