Predator/Pool/Lockers/Slapping her

You grab the brat by the hair slap her straight across the face. She stops struggling instantly and looks off into space with a shocked look in her eyes. You slap her a few more times just to make sure she gets the message. She cries and holds up her hands to guard her face, with tears streaming down her cheeks. You're sure that she now knows her place.

What do you do?