Scrubs:

Billy Callahan is a life-loving Irishman who comes to Sacred Heart Hospital after being injured in a bar fight and teaches Turk and JD a lesson about living life to its fullest, once he has figured out that they aren't a gay couple.

Meanwhile, Carla and Elliot attempt to make social plans with each other but can't seem to stick with them, which creates tension between the two friends. Elsewhere, Dr. Cox gets a vasectomy behind Jordan's back, a situation which is revealed by Kelso when he says he recognises the distinctive limp. But Cox is stunned by her reaction when she discovers the truth. When Jordan signs up their son Jack to ballet, Cox decides that maybe the procedure wasn't the bast idea after all.