A bobcat attacked a Southbury couple and their dog this week.  Environmental officials say the bobcat attacked the dog Monday night and as the dog went back to the house, the animal followed it into the garage.  It then attacked a woman.  The man entered the garage to pull the bobcat off of his wife and the animal bit his arm.  The man reportedly beat the bobcat to death with a fireplace log.  The woman sustained injuries to her head and shoulders, and the dog suffered minor injuries.