THAT, my friends, is some of the most sensible, wisest advice I have seen here in a long time. Let the scales fall from your eyes: reboot the class, and never mind the past. Walk in tomorrow, reiterate the rules of the room- and to Hell with discussion- and then lay the law down flat when they cross you. Repeat ad infinitum, and be prepared to grit your teeth like John Wayne when the naughty notes pile up. Call home, log, detain, remonstrate EVERY time you need to. You WILL find it tough, and it WILL feel like it swamps you at times. Persevere. It's possible anyway, that they really weren't great for you at first, merely cautious, and then when they realised that you weren't a hard nut, they pushed the boundaries as far as they could. Well, not you need to electrify the fences you place around them. Good luck. Read more from Tom here on his personal blog, or follow him on Twitter here.