BASALT, Colo. — Firefighters battling the Lake Christine Fire got a special treat Friday when Neil Diamond stopped by to perform “Sweet Caroline” and other songs for them. Diamond and his wife came by an Incident Command Post to meet and thank the firefighters who have been fighting the blaze, which was estimated at 12,588 acres Sunday evening. The fire is 82 percent contained. In a separate video, he points a finger at the firefighters. “Now, you have to save my house,” he said.