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A Gloucestershire dad is fighting back against online bullies.
Paddy Clarke has come up with a computer programme which monitors your child's Facebook page for certain words and phrases and emails parents if there is a suspicion of bullying.
Paddy, who is a consultant at Gloucestershire Royal Hospital and has four children himself, developed 'Know Diss' with business partner Alan Saul.
He told Heart more about the programme:
You can find out more at www.knowdiss.co.uk
Figures show between 20 and 50% of children have experienced cyber bullying in the past 12 months and it is reckoned over half never report it.