Instead of being armed, I feel it would be MORE sensible to learn martial arts. Obviously, you could also disarm the person and hurt him with his own weapon.
I was trying to find out Martin's height, for I knew his weight was reported as 140--150 lbs. If he was 6'2/ 150lbs then he was think as a broomstick! I know. At his age I was just 1 inch shorter (amd still 6'1") and 150lbs. Folk in the hood called me "slim." ("Hey slim, what's happenin man?") I did study Karate at that age. I don't know whether I was already sufficiently skilled to take care of a 240 lbs ogre like Zimmerman.