During the worst years of Cabrini-Green's problems, vandalism increased substantially. Gang members and miscreants covered interior walls with graffiti and damaged doors, windows, and elevators. Rat and cockroach infestations were commonplace, rotting garbage stacked up in clogged trash chutes (it once piled up to the 15th floor), and basic utilities (water, electricity, etc.) often malfunctioned and were left in disrepair. On the exterior, boarded-up windows, burned-out areas of the façade, and pavement instead of green space—all in the name of economizing on maintenance—created an atmosphere of decay and government neglect. The balconies were fenced in to prevent residents from emptying garbage cans into the yard, and from falling or being thrown to their deaths. This created the appearance of a large prison tier, or of animal cages, which further enraged community leaders of the residents.