Long before all these sprays were developed mailmen would carry a water pistol filled with ammonia to deal with vicious dogs. Sprays in the eyes-will give you a few seconds. Ball point pens and pencils make great stabbers. Kitchen knives ? The old long handled OD painted GI entrenching tool made a great skull cracker. A hiker's staff of walking stick-especially a crook top cane. The question is , what CAN"T be used in self defense?-