No, no, noooooooo
Three cheers for Alaska!
Always carry your cellphone on your backpack or purse, and if you believe things are going weird, just make it look like you are searching for something, but you are just marking police number.
Also, try to get in crowded places, don't give the back to no one, if you engage in a fight and you feel you won, don't fuck it up, probably the guy wasn't alone, in resume, just get control over the situation before you lost all control over it. And if you can, try to train running.
and when they are on the ground, use the good old fashioned thumbscrews
The kombucha mushroom people, sitting around all day.
A water gun. That shoots pepper spray.
Its title is all you need to know. And not even that, ideally.
What are the requirements in your state to carry a taser?