I'm with Kidlearner. For a course I took on self defense for women, we had the option of letting ourselves get sprayed in the face with mace (we were allowed to close our eyes), unless you had asthma or a lung condition. I wimped out and turned my head away at the last moment, and it STILL hurt for forever. Plus, if you get caught directly in the eye, it can deteriorate the eye's surface to irreparably low levels. It's dangerous stuff!