Oro Valley police officers teach a self-defense class for women from 6 to 9 p.m., every Thursday, from Feb. 6 through 20; free. The class is for ages 15 and older, and covers awareness, prevention and risk-avoidance as well as punching and kicking techniques. Wear comfortable clothes and bring healthy energy snacks if desired. Participants must attend all three sessions. Reservations are required.