A carhop is a waiter or waitress who brings fast food to people in their cars at drive-in restaurants. Carhops usually work on foot but sometimes use roller skates, as depicted in movies such as American Graffiti and television shows such as Happy Days. Carhops have long been associated with hot rods. The uniforms of early carhops were important, as many drive-ins were competing and something eye-catching was seen as gamesmanship. There was often a military, airline, space age, or cheerleader theme, or any other concept an owner thought would bring customers in.