Right Guard..The small can (sampler). Also good for making a "James Bond torch". A bit aggressive, but effective. Actually, you could use eye drops. They sting like mad in a large dose. You could also put vinegar in the bottle. Remember you only need 1-2 seconds of distraction to exit. The natural thing to do is protect the eyes if something is pointed at them. Similar to spraying "Great Stuff" expanding foam at the groin of a guy. He'll put his hands down to protect his junk. Next thing you know his hands are stuck to his zipper. Cops are using this tactic in some areas.