I gather you've never been burgled before.
You typical house/apartment is sooo easy to break into you'd likely be shocked if you see it done by someone who knows what they are doing. A burglar finding a gun is a burglar who thinks he's hit a minor mother-lode. He then begins the search for more firearms as even the village idiot burglar knows where there is one gun there's likely to be more just waiting to be turned into cold, hard cash. How would you feel if one of your stolen guns killed a cop or ended up being used in a mass school shooting?
I'll tell you how your local DA will feel. He/she will feel like getting some payback for the surviving loved ones and you are now the target. And, let's not forget about all of those surviving loved ones who will lawyer up and take everything you own in court.
RKBA is deadly serious business. You as a gun owner have a huge responsibility to keep your firearms out of the hands of those who want to make your arms THEIR firearms.
Laziness is the burglar's friend. Lock up your guns. Lock up your valuables if you intend to keep them. Every single victim of burglary will tell you "yeah, I know it happens, I just didn't think it would happen to me".