I had what I assume was a drunk person, try to get into my apartment once. Not something that should be too scary but I felt uneasy for some time after that.
I'd be out wiring the house like ft. knox the next day, if that happened to me haha.
Despite all the stories in this thread, me and my neighbors here in SF leave our cars out and haven't hade break ins. Even the $100,000 convertible with a soft top parked outside our place most nights hasn't been bothered in the year I've lived here, and I live in NOPA, so not exactly the outskirts.
I think the saying "crime doesn't travel up hill" is very real in SF
But its small enough that there's only a few "big" crimes a year which becomes the town gossip. This mostly involves some superintendent embezzling money or some criminals coming into town to steal catalytic converters lol