Be nice to your neighbors so they don't do that and might even help when someone tries.
Reminds me of the house locks argument. Your locks are not sufficient to deter a burglar. The police aren't, either - they won't get there in time, and criminals know that. So why aren't you being burglarized constantly? Because most people aren't criminals. But you still use locks - failing to do so is basically an invitation to get robbed. Despite their physical ineffectiveness.
