crisis intervention team. nobody here has a degree in school counseling. no majors in criminal justice? >> no. >> no. >> reporter: your qualifications are. >> we're dads. we decided the best people who can take care of our kids are who? are us. >> reporter: mike lafitte started "dads on duty," a group of about 40 southwood dads who now hang out at the school in shifts. >> let's go! >> reporter: today, any negative energy that enters the building has to run a gauntlet of good parenting. >> what's going on, buddy? >> you're moving fast. i like that hustle. >> i immediately felt a form of safety. >> we stopped fighting. people started going to class. >> reporter: how could that be? >> you ever heard of a look? >> reporter: a look? dads have the power to do that. >> yes. not many people know it, but yes. >> let's go! >> reporter: but it's not just the firm stares and stern warnings. >> make it to class, my son! >> reporter: it's also the dad jokes. >> they just make funny jokes,