I am a retired probation officer so cut my baby teeth on young offenders who delighted in challenging the rookie! Ideas for managing difficult behaviour need a basic training course, but a good start is to sit with the group and agree ground rules that everyone can adhere to and hold each other to account if they are breached. For example, speak respectfully to each other, listen when someone else is talking, mobile phones in their place so they don't disturb everyone and so on..... but important that the rules are generated by the group and not imposed by scout leaders. Avoid getting into arguments, acknowledge that youths may be resistant to change so don't set unreachable standards, give lots of credit for positive behaviour and say why it is positive so they can repeat it, notice when the young person does something on their own initiative, describe how their positive behaviour will transfer to college or apprenticeships. Come on guys...there are some very wise women out there, who will be able to leave these ideas standing x