You're free to leave your car unlocked with the keys in the ignition in a bad neighborhood.
If you pictures or car get stolen, it's the fault of the person doing the stealing. That said, you shouldn't get too upset if the entirely foreseeable result of your actions comes to fruition. Doesn't make the person who did the stealing any less wrong,you just shouldn't go around getting upset if the worldbehaves like everybodyexpects the world to behave.