He was extremely aggressive towards Laura and called her names. In the Submission Reel, Laura said he throws tantrums 3 to 4 times a day. Stuart called him "the child from hell" and said was impossible to control, and that he feared for the safety of the siblings.
Laura and Stuart also taught Matthew kickboxing, and Jo feared that Matthew didn't understand appropriate limits to physical interaction due to this instruction.
He was introduced to a chill out chair to let out his anger when he lost his temper.
He was 5 years old when he appeared on Supernanny and will be 17 in 2017.