Like the Rhodesian Ridgeback, the Thai Ridgeback is a very fierce guard and watchdog. (texaswestveterinarian.com)
They can be taught to be great babysitters or fierce guard dogs. (urbandognyc.com)
I have cursed the Big Pharma Companies for their failure to take risks and their fierce guarding / not sharing of proprietary discovery — their parochial - ness. (cen.acs.org)