I think of myself as a reasonable person, but my five-year-old's behaviour causes the red mist to descend. At school, the teachers think she is quiet and polite. So why does she save it up for when she gets home, or before she gets to school? I thought stamping-feet, tantrums and rudeness came in the teenage years - but not in our house. My daughter goes out of her way to be annoying. She won't do anything we ask - even the most simple task, like putting on her shoes - without a battle. She regularly takes toys off her younger sister, shouts childish obscenities at us when she can't get her own way and causes great upset. Almost every trip out is for her: swimming lessons, ballet, drama. We praise her to high Heaven when she is good and tell her off or take treats from her when she is naughty - but none of this seems to work. I would welcome any advice on how to deal with her because each day I am full of despair that I am just not cut out for this role. Thanks for listening!