Dozens of people have signed a petition urging a school to remove a gate installed to stop pupils from using a toilet block during lesson time. It has reportedly made children at Herne Bay High feel like they are in a “prison”. But principal Jon Boyes has doubled down on the policy, introduced this term, which has been dubbed a “human rights violation” by one critic. He says the gate has only been installed in one set of toilets and is part of measures to ensure the safety and wellbeing of pupils. However, some parents say their children are “not animals to be caged in” and describe the move a…