I knew a gunsmith/shop owner who carried a 1911 clone on his hip, not to mention watch dogs. If I knew him well enough, he's not the type of guy to you want to pick for a theft/robbery target . Ya might not live very  long  

If all gun theives were afraid of being instantly mowed down with a storm of lead, there might not be quite as many gun thefts.

Bot, you only need one good gun to do the job, so long as its loaded, cocked, and ready to fire in the hands of someone who can use it. Otherwise, its just furniture to be stolen--and the more,the merrier for the thieves.