We like to think our doggies have a sixth sense. They sit beside us when we feel under the weather or our spirits hit rock bottom.  Their gesture brings us comfort.  Truth is, dogs detect scents that escape us ordinary humans.  They sniff our physiological changes and go into caring mode.  Sometimes they retreat and bark from a distance and we fret that they’re in a bad mood.  In reality, they’ve detected a new scent.

So it was with my sister. Her poodle growled and barked angrily when she came home from work.  He knew that the cancer had returned.