Ms. Janet Barch:  Now , before I divide the class into teams of _ two _ , who can give me another example of reinforcement ? Fine , class . Ignore me ... just like he did ! Kevin ?
Kevin Thompson: Uh ...
Ms. Janet Barch: Shut up , Kevin ! Daria ? Reinforcement ?
Daria Morgendorffer: Hmm ... to make a child stop crying , a mother might say , " That 's it ! I 'm sending you to El Paso to live with your real father . " Whenever the child gets upset , the mother might wave an airline ticket in her face , or maybe even frame it on the wall by the clown picture . The ticket stops the girl from crying , or showing any emotion ... ever .
Ms. Janet Barch: Right , that 's ...
Daria Morgendorffer: Years later , seeing an airplane or just hearing one fly overhead can unleash a Pandora 's Box of repressed anger , shattering the grown child 's fragile psyche and triggering a psychotic and possibly deadly episode .