If you can afford a fancy home in a fancy area you can afford a “rent-a-Cop” with a couple of 16ga. pump shotguns loaded slug-buck-slug-buck!
16ga? The haven’t made those things since 1969 or so.
http://www.fieldandstream.com/answers/guns/shotguns/shooting-tips/what-ever-happened-16-gauge-shotgun-it-used-be-thought-good-comp