As with all weapons, too, remember that nothing is a sure-fire threat-stopper. They say about 5% of the people out there are not all that affected by pepper spray. I dunno if thats true, but we did have one guy in our academy class who took a full blast in the face and looked utterly unfazed by it. Scary stuff. I get a burning sensation just thinking about OC spray.
FWIW,
Mike
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"A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects." -Robert Heinlein