"It was like a challenge to see if I could," he told the BBC. He was close to being expelled - but his worried mother had no idea how serious his actions were. She called the police and invited an officer from the nationwide programme Cyber Choices to their home in rural Cumbria. "My mum was like, 'ooh, you've got a detective coming to speak to you, you're in a lot of trouble'," Lucas said. PC Sam Cooper knocked on the door earlier this year and has been working with Lucas ever since.