The annual number of calls for service to police departments per room ("CFS/room") as a metric has been used to identify motels with poor surveillance of visitors, inadequate staff or management unwilling to pro-actively exclude known or likely problem tenants. Motels with lax security in bad neighborhoods attract disturbances (including guests who will not leave or pay), robbery, auto theft and theft from rooms or vehicles, vandalism, public intoxication and alcoholism, drug dealing or clandestine methamphetamine laboratories, fighting, street gang activity, pimping and street prostitution or sexual assaults.