#1- There Is Supposed To Be Fighting And Violence. If You Don't Like It Don't Join. Or If You Don't Like Constantly Getting Attacked, Try To Join A Different Gang, Simple As That.
#2- Cursing Is Allowed. Deal With It.
#3- The Leader Of The Gang Gets To Decide How Many And Whether Or Not They Want You In Their Gang. If They Say No, It's Final Until Further Notice, Join A Different One.
#4- Under Most Circumstances If A Gang Leader Is Killed, Unless They Have A Second In Command or Are Quite Powerful, That Will Be The End Of The Gang.
#5- I Can't Think Of One...