A 16-year-old grade 11 pupil in Limpopo has invented a device for women and children to assist them to trigger an alert when they find themselves in danger. Bohlale Mphahlele, a pupil at S.J. Van der Merwe Technical High School in Lebowakgomo, recently won a bronze medal and a trophy at the Eskom Expo for Young Scientists for her device which is the size of an earing which has to be connected to family and friends.