Dr. Emmett Brown: Youve got to get your father and mother to interact in some sort of social...Marty McFly: Wh-what? You mean like a date?Dr. Emmett Brown: Right!Marty McFly: What kind of date? I dont know. What do kids do in the 50s?Dr. Emmett Brown: Well, theyre your parents. You must know them. What are their common interests? What do they like to do together?Marty McFly: Nothing.