My husband, W, had a heart attack on New Year’s Eve. Thankfully, he’s recovering well after the miraculous procedure of inserting multiple stents into two arteries. We say he’s bionic now. What’s been interesting is how our dog, Roux, has responded to his convalescence. Roux prefers to lay next to W on the couch with his head resting on W’s leg. Or on the floor at W’s feet. We have taken to calling him a therapy dog. I know Roux is not unique in this nurturing trait. Reports abound of canines demonstrating unconditional love and companionship. There are movies showcasing heroic dogs in service to the military and law enforcement agencies. Or dogs who drag people…