PRIDE!! THAT IS A WEAPON IN ITSELF
if you need to hurt the guys pride in front of his friends. say something like "what you need all you friends to kick my weak ass, why dont you fight me like a man, and without your friends, or are you afraid??" and one of two things will happen.
1) the more likely would be that he will keep his friends out of it, because if he needs them then he looks weak in there eyes and when it comes to highschool and jocks, thats a big NO NO.
2) or he and his friends will come after you anyway, in which case you procede to pull out your weapon or do whatever you do in that situation. if you do however fight them all, make sure you take out the guy who starts it, to let him know that you shouldnt be fuked with.
are you talking about butterfly knives??
if thats the case then you can get them at martial art/knife store, but you can also get flip open knives that the seals use and other military units have. some of them are even blackened so you cant see them if you pull one out at night.
I agree with Jerry Love's first post
Get a camera and just mount it. Walk up and say you don't want to fight, if someone comes at you, run like a b*tch and come back later. It is considered assault if they raise the bat in an attacking manner (because if you turned, tried to run and ran into say a tree or light pole you didn't realize was behind you, they will be prosecuted because they put fear into you and made you run.) Or just tell the ***** you want him on a one on one match and don't bring any of his lackys with him.
PHILBERT
What to do against 40 of his friends
A the martial arts in the world wont help, so that is when I reach into my Coat and put out my Model 1911, I keep 8 spare clips. I'll get a few, the rest should be smart enough to run.
vs 40 peolpe with baseball bats you could try
to go there with 80 people with baseball bats.
I didn't read all the pages of the thread, but are you serious with this number? I mean there's really someone who for beating up a guy comes accompanied with 40 persons?