Can do Kwon Do, at 7
NOBODY messes with the youngest Tae Kwon Do black belt in Australia, seven-year-old Sabrina Castro of Mermaid Waters.
"We are a bit careful when we ask her to go to bed," her father Leo laughs.
The Miami State School student started the discipline at age four, steadily moving to the top ranks of the Shim Jang Academy, training two days a week at her primary school.
"She got her black belt on November 28?...?some of her friends watched her go for her black belt grading," Mr Castro said.
"The whole room roared when they announced she had got it because she was so young."
It seems Sabrina has set a prime example for her family to follow ? all of them have undertaken Tae Kwon Do.
"My wife Martha is a brown belt, my son Nicolas is five and learning and so is my other daughter Natalia," Mr Castro, who also practices Tae Kwon Do, said.
He said it was a relief that his daughter could put up a fight if she crossed harm's way.
"As a girl she can say no to anybody," Mr Castro said.
"She knows not to use it in a violent way but to use it to protect herself."
Sabrina currently has her junior black belt, but she will have to wait for several years before she is able to qualify for her senior black belt.