Winona's Dad Says: I don't advocate wasting space in your bag for a weapon because in truth, you can make anything into a weapon, with the possible exception of a Twinkie. Sticks, rocks, rope, pieces of plastic and metal can all be deadly if used correctly. If you really want to be prepared, make yourself a weapon by signing up for a self-defense program or a Krav Maga class. But keep in mind that the best weapon is often to run away, and with your GOOD bag, you'll be ready.
Winona Says: This might be a good time to share one more piece of advice my dad gave me when I was a little girl: "There's no such thing as a fair fight. Go for the scrotum."