better to learn few arabic abuses, use them when ever u need them.. and Slap him on face.. as you do in your country.. don't feel like its not your country.. take care of it, be responsible.. and if some cheap youngster do such an act..ABUSE... the best for them.. destroy their ego. there confidence..
i really get upset when i listen or see such stories.. why the heck people are doing such filthy things. and why other suffer...