Known by various names (Pepper Spray, Capsicum, OC, Mace (erroneously), Hillbilly Condiment), pepper spray or Oleoresin Capsicum has become popular in both the consumer and professional self-defense market. It causes the eyes to water and close, a feeling of tightness and heat upon the skin and difficulty breathing, rendering the assailant (theoretically) disabled. There have been cases of people being sprayed with pepper spray and continuing their attack, however, so it isn't a 100% fool-proof solution to self-defense. Some sprays include dye to identify an attacker - a good idea in my opinion. Much of pepper spray's effectiveness depends upon the percentage of capsicum in the spray and the measure of the heat, or Scoville Heat Units, that the resin contains. Most pepper sprays range from 2-17% active ingredients and from 0.5 - 5.0 million SHU. Do you carry pepper spray as a primary or secondary defense? Have you ever used it, or been sprayed with it?