"Good job, everyone!" Mathew called out as soon as one of the survivors locked the gate behind him. And then, to Mathew's surprise, they actually came in with what looked like the long benches from the gym area of the school before probing the gate up with them adding additional although unnecessary security to the potential weak point.
What they failed to consider, though, was that the physical features of the fence itself had absolutely nothing to do with how the school was defended.
Sure, the barrier was anchored on the fence and as such, breaking it open would cause either a section of said barrier or the entire thing to fall and collapse.
'Or maybe someone saw us both locking and unlocking the gate from the outside?' Mathew then thought.
In this scenario, adding more security made total sense. Yet, it was only assuming that they were worried about humans attacking the place, as no zombie could push its hand through the barrier to unlock it.