I agree with Osama. Unless the kids own up in person, there's no other option...

POLICE!!

There's no reason you should put up with this sort of crap from anyone.

The police take the harassment of women very seriously in this country.

There are plenty of instances of the police arresting and fining people for this sort of thing.

http://www.gulf-times.com/site/topics/printArticle.asp?cu_no=2&item_no=3...