There is plenty of information about how to deal with cyberbullies, but far less about what to do if you find out that your own child is the source. The BBC took advice from experts and a mother who found out her daughter had been cyberbullying her school friends. The parent's view Image copyright Other Image caption Nicola Jenkins found out that her 12-year-old daughter was posting unpleasant comments online from her teacher Few parents would want to admit that their child was a bully but Nicola Jenkins has gone on record with her story. You can watch her tell it here . "Nobody thinks that their own child is saying unkind things to other children, do they? I let them go on all the social media sites and trusted the children to use it appropriately. "Our form tutor phoned me up during school hours one day to tell me that there'd been some messages sent between my daughter and two other friends that weren't very nice. One of the children in particular was very upset about some of the things that had been said to her. "Her friend's mum spoke to me about it and showed me the messages that had been sent.