While some of our dogs are content with laying on the couch or digging holes in the backyard, others are always alert and keeping a keen eye on their surroundings. These dogs will be the first to notice if something seems amiss, and that is something that spells disaster for any burglar hoping to make it inside your house. In this video, we’ll introduce you to ten breeds of dogs that any burglar would be horrified to find inside a house. Some of them, like Rottweilers, are dogs that many of us immediately recognize and associate with security. While others like the Belgian Malinois are a bit less well-known, but no less effective when it comes to keeping your home safe from intruders. You may not think of the adorable West Highland Terrier when you think of good guard dogs, but these alert and protective little terriers will have no issue raising the alarm if something unusual is going on inside your home. In fact, many terriers make excellent guard dogs, including the distinctive looking Airedale Terrier, or either type of Fox Terrier. Then there are the dogs that are more used to guarding livestock, like the Caucasian Shepherd Dog and the German Shepherd, but when push comes to shove, they’ll happily guard their humans as well. Some may argue that the American Pit Bull Terrier is overrated as a guard dog due to their friendly and outgoing nature, but we believe that their mere presence is intimidating enough to ward off would-be intruders.