Hairspray which is strong enough to clean biro off a table, is much more stingier for the eyes. And don't hold back. It has been recommended by many police also to use that method (over here in UK schools anyway), as it is not officially a weapon and cannot be done for it using it as such - any woman with a sense of style (grins) should have one in their bag (even if it is just for defense reasons alone), It is a good way of buying time you may not have had. Or while they are at a surprise form hairspray in the eyes a bloody good opportunity to get a strong kick in the nuts to bring them down and a whack on the back of the neck - done in the correct spot would KO them completely, thus giving you enough time to get the hell outta there - making sure you get enough attention also!

If worse comes to the worse, bite, pull hair, scratch etc - do what you can and don't hold back. You're fighting for your life - which is worth fighting for!