do the lethal injection. Much of the planning is done by phone, with Hopkins summoned to the house on short notice at the end when the animal starts to suffer."When it's that time, it's that time," Hopkins said. "And you need to act fast."On a Friday night in March, Hopkins got the call and was at the Layouni family's Everett home early Saturday morning. "He went downhill fast. He couldn't get up on his feet," said Sami Layouni, 23. "Until then, he was still eating and wagging his tail."Sami and Rocky were best buds. "All my growing up years I had him," he said. He was 11 when his mom took him to a breeder to get a dog. "He was being raised by me, a single mom,and he had a sister and two female cats," Marcia Layouni said. "So I decided he needed a boy in the house." Sami knew immediately which pup was the right one. "He got his head stuck in the gate trying to see us," he said.Rocky had a thing for stuffed objects."He had to have something in his mouth. It was either a stuffed animal or a pillow," Marcia Layouni said. "He never chewed them. Our neighbors would say it's like he's assembling a living room in the yard." On that final Friday night, Sami and his sister, Troy, 20, slept upstairs in their mother's room with Rocky. Nobody got much sleep.Saturday morning, Sami carried Rocky downstairs to the front room and put him on a blanket with his