People in your family who specialize in making your life hell. Depending on what kind of parents you have (asian parents are the worst), they can also make sure that you don't have a life, make you study your ass off for no reason, and basically make you a working robot.
Person 1: Hey Jimmy, coming to the party tomorrow. We gonna drink, play video games, dance and all the following above.
Jimmy: Srry guys i can't, my asian parents are making me read books in chinese.
Person 1: Dude you are so uncool.