RedactedNarrative: Operator was anchored in the Marion County park area of Nickajack Lake, at some point Operator was going to pick up a friend at the Marion County Park boat ramp. He forgot and left his anchor out. When the anchor line pulled tight the anchor shot out of the water, up beside the boat, once the slack came out of the anchor line it jerked the anchor back toward the boat. His wife jumped up toward the front of the boat to shield the children that was sitting in the front seats, the anchor hit his wife on the left side of the back of the head causing an approximate four inch laceration. She was treated and released from Park Ridge West Medical Center in Jasper, TN later that afternoon. There was no noticable damage to the boat.