"Grumpy Old Man" is the ninth episode of the tenth season of the American animated sitcom Family Guy. The episode originally aired on Fox in the United States on December 11, 2011. The episode follows Griffin family patriarch Lois Griffin's father, Carter Pewterschmidt, after he accidentally falls asleep while driving in a snowstorm. Concerned for his safety, Lois then decides to admit him to a nursing home in Florida, in an attempt to help him adjust to life as an older man. Carter is reluctant to live in the retirement community, however, but eventually comes to enjoy the various activities at the home. Six months later, Carter suddenly becomes grumpy, and even more elderly, causing Peter to take him back to his old business and bring him back to normal.