What do you do if a gunman storms a house of worship while you're inside? Inside Edition spoke to security expert Bill Stanton about how to protect yourself. He says you can run, hide or fight. First, run out as fast as you can, ducking to avoid gunfire. Second, take cover under the pews, shielding vulnerable areas, like your head. Third, you can try to disarming the suspect, Stanton said. Houses of worship increased security after a gunman attacked a synagogue in Pittsburgh.