Maybe the city could discourage break-ins by prosecuting more aggressively. The approach of the police suggesting not leaving valuables seems like victim blaming. “If you hadn’t been wearing that short skirt...” Getting a window smashed is not trivial damage. Incidentally, insurance rates for the city are much higher than in other parts of the Bay Area. Smash and grabs seem to be much rarer in New York City for some reason which suggests San Francisco is being victimized by defective public policy.