Robert Kirby: Pets and the marks they leave behind

The world’s dumbest dog died Friday. Daisy, a 10-year-old yellow Lab, jumped up to bark at the guy who came to measure our countertops, had a massive seizure instead and fell over.Two hours later, Daisy was helped over the Rainbow Bridge by the vet. It was the end of a yearlong battle with a host of medical problems, the worst being cancer. Anyway, she’s gone now and better for it.Daisy lived a long, loving and incredibly dimwitted life. Her favorite activities were barking at guests