I’m dedicating this column to my frail geriatric canine, Tessa. I’ve taken dogs on nursing home rounds with me now for almost 25 years, and it never gets old. The joy they bring to my residents is palpable and undeniable, and it brightens up my day, too. Yes, it slows me down some because there are lots of informal visits and the unplanned detours between patients when someone shouts, “Oh, a dog!” from their room. Luckily, I am usually not in a rush, and I figure I am collecting some sort of karmic currency for sharing the pooches with others who really appreciate them.