>If you're not strong enough to impose your will on someone making violence on you, then train and get stronger. If you're intelligent, it doesn't matter if the other guy is bigger than you. Take up boxing or martial arts. Brain beats brawn.
In 9th grade having a little boxing under my belt, i was attacked by and successfully won the fight with 2 10th graders. Well, a half-day latter, the 10+ of them met me. Not everybody was beating me though - it was just too crowded :). And they weren't even too cruel - i was even able to walk several hours later. They taught me a valuable lesson - for any force there will always be a much bigger force.