Joe Kavaluskis always loved surprising his sons. When Joe learned he would lose his nineyear battle with cancer, he arranged for a final surprise. Logan Kavaluskis, 13, had always wanted a dog, but Joe's allergies made it impossible. So Joe arranged with his wife to get Logan a puppy. "He said, 'Just promise that when I do pass, that you get Logan a puppy as soon as you can, because I know that it will bring him a lot of comfort,'" Melanie Kavaluskis told InsideEdition.com. #InsideEdition