Though cute snuggled in his “den,” approaching too closely will uncover bared teeth, a bark, and-if necessary, a sharp crunch on the finger.
Our Chihuahua demonstrates perfectly the traits of the breed-possessive, selfish, habitual, loving to friends but vicious toward anyone intervening in his cozy world. Burrowing is also one of his habits. Whether underneath the bed covers, beneath his favorite blanket, or buried in a throw, he loves to snuggle and be covered while doing it. But his den quickly becomes iniquitous when invaded.