Lesley, you have my sympathy but your situation just makes my blood boil!!
It is a sad reflection on society that we have come to this level of disrespect. Personaly I would blame the majority of these problem kids on lack of parenting skills and the complete lack of any discipline due to the Human Rights Act. It is supposed to protect us, but seems to entirley omit the fact that some people will not respect others human rights. Parents fear disciplining their kids incase they are taken to court. When I did something wrong I got a thick ear or worse. It did me the world of good because I knew if I did something wrong there would be consequences.. usually painful ones! Kids will push their boundaries, they always have, if their are no boundaries there is nothing to stop them.. Bring back the smack, the slipper, the cane and even the birch for those caught with knives..
sorry.. rant over!