I don't know anyone who has a dog over 5 pounds that would even bark if an intruder came in. Stupid mutts.
Well I had a GermanShepherd/Coyote mix that would certainly lay it all out, and a Malamute/wolf that would too. And a Chow Chow I could trust with my life.
there's a reason folks like Troutbum hated the aggressive breeds like doberman pincher and Pit Bulls, kid-eaters and huge liabilities to have on the premises.
If you carry a gun you have to be mentally prepared to use it effectively, which is to say lethally considering the lawyers who'll come a swarming after whatever you have.
Chinese folks have never had good police protection, and usually there have been armed gangs led by some thug calling himself a warlord, who was essentially judge, jury, executioner, and government. Some people just learned to live inconspicuously and avoid any attention whatsoever.
Failing of that, a lot of cameras, and franklins window and door hardware will keep most troublemakers moving on down the street, until we do have brazen gangs of home invasion robbers and warlords with big ideas.