Pepper spray is perfect for me. stuns them for a bit so i can get away after landing a few critical blows.
run ? if u are whippin a nigga's ass, easpecially if he is blinded and u get in some "critical" blows YOU DON"T RUN, you be a psycho and continue to beat the shit out of him so he dosen't start shit again, if u run he'll want to fight again and beat you like a bitch, u only run if the police or somebody with authority chases you.
Mace/pepper spray if for women being abused by men or people who have no ability whatsoever to defend themself, learn to box and if you're fighting someone bigger, bust him in the eye, jaw, or wind pipe (kick in that area). While they are feeling intense pain (assumining u are at least strong enough and try to become physically fit) lay in physical blows to critical areas that will either hospitalize, kill, paralyze, or knockout that person, and continue to work on that area until the fight is over