Some puppies may become resource guarders, lashing out the moment a person or dog gets too close to their toys, bones or food. (puppy-training-solutions.com)
So, dogs are often misidentified as future food guarders during shelter assessments. (pubfacts.com)
Fearless at work, docile at home, the Bullmastiff is a large, muscular guarder who pursued and held poachers in Merry Old England — merry, we suppose, for everyone but poachers. (akc.org)