Why would someone jump a guy whos jus writin his name on shit..
but yea bring mace maybe cuz if you carry a weapon like a 9mm, thats you gettin into some bigger shit than you would of if you just ran or sprayed him in the face. Think about it.. Its legal to carry it around.. it burns alot.. it buys you time to run.. and possibly take his wallet.. plus you have the great memory of that guy screamin like a pussy on the ground.
That or you could hear your friends call you a pussy, it hurts your feelings, so you take a gun instead then when you whip it out and you start shootin, you run the risk of killling someone and gettin charged for murder. Or you being a terrible shot, missing, and then get one between the eyes.
Your call, buddy