This Saturday, six pupils have been told to be at the detention.
Mr Ebenezer said most of the school's 1,300 pupils were following its rules and just a handful of boys had to attend after-school detention on Tuesday.
The school hopes the Saturday punishment will prevent pupils being suspended, which is also known as a fixed-term exclusion. But failure to attend will mean exclusion.
Other aspects of the school's crackdown on bad behaviour see pupils having to clean tables if they have vandalised them, do supervised litter picking, and some parents are asked to go in to sit next to their children during lessons.
Mr Ebenezer said Saturday detention had been in the school's eight-page behaviour policy since September and the school "haven't needed to use it until now".
"I have to travel nearly an hour to get here on Saturday and I don't want to be there," he said.
"This is the next step to have to come in on a Saturday morning," he said.
"I'm told it's restrictive practice, that young people don't like them, and to use it sparingly but the vast majority don't get a detention and once young people start liking detention then let's get rid of it as it's not worth doing.