Sheldon Cooper from The Big Bang Theory exhibits traits consistent with obsessive-compulsive personality disorder (OCPD), including a need for control, order, and perfectionism. In the episode "The Closure Alternative", Amy confronts Sheldon about his compulsive behaviors and inability to leave tasks unfinished. She subjects Sheldon to incomplete activities to prove her point, causing his frustration to increase. After Amy leaves, Sheldon proceeds to complete all the unfinished tasks, demonstrating that those with OCPD feel a strong need to seek closure in all activities. The episode illustrates how OCPD can affect people's lives and behaviors.