It was determined last week that we don't need a dog.
This is because our cat gives us ample warning when something is amiss.
He growls. At strangers. Walking around our neighbor's house. At 11 pm.
Before everyone goes all crazy saying something was horribly wrong and we should have called the cops, let me assuage those fears by pointing out that our neighbor had called one of those 24-hour Repair Service places, and the guy walking around her house was supposed to be there.
But still, our cat growls, at strangers, walking around the neighbor's house, at 11 pm.