A recent Samaritans survey claimed 80% of employees have been bullied at work. Bullying is said to contribute to stress at work, and anti-bullying initiative Dignity at Work estimates it cost UK organisations £13.75 billion in 2007. Mobiles and Blackberries have apparently led to 'cyber bullying', making it impossible to escape abusive colleagues. Has bullying reached epidemic proportions, or is it the definition that is out of control? In this video Richard Donkin offers his view.