guard dog

The Times attempted to interview Kruse at his flagship site in West Point, where a sign warned of guard dogs and instructed visitors to call before entering.

I glanced at the heavy scimitar lying like a guard dog beside his leg.

To find out, the researchers asked Montana farmers who were regularly visited by grizzly bears to host a guard dog.

"Today I felt less than human, like a guard dog not allowed into the house. Lonely and isolated."

During the day, only the sounds of tractors or barking guard dogs puncture the deceiving serenity.