Who Do You Think You Are?

Shawn Spencer is a good natured person. Always cheerful and smiling. So what happen to that Shawn and why did the sudden change in his temperament have Lassiter so worried. Warning: This is a slash story. WARNING: THIS STORY HAS/MENTIONS SEXUAL, ALTHOUGH NOT REALLY GRAPHIC, PHYSICAL AND EMOTIONAL ABUSE, AND BECAUSE OF THIS, IT IS NOW 'M' RATED.