An alleged squatter's paradise inside a Denver mall became a prison Tuesday night, when police say a man hiding in the ceiling fell, tripped a water main that then flooded a restaurant and hotel lobby below, and got stuck inside a wall. Police showed up around 11 p.m. to reports of a man falling through the ceiling, reports 9News.com, but alas, the guy was nowhere to be found. A bit later, cops saw the man walking through scaffolding above a restaurant, at which point he somehow tripped the water main and started a huge flood in the businesses below.