As he led us up the concrete, graffiti-covered stairs in the dark and informed us to cover our flashlights when we were passing by the busted-open doors that led to balconies with a view of the Philadelphia skyline. As we passed up another flight of stairs, he turned and said, in all seriousness, "If you come back here to crash, avoid the fifth floor at all costs. A tweaker with night-vision goggles lives there." There was a mention of "They'll never find your body" shortly thereafter.