One of my biggest gripes at the moment is the ability for any dinosaur to break down fences. In particular electrified concrete fences. A struthimimus or velociraptor should not be able to break through a concrete wall even if it banged its head into it for an entire lifetime. What should really happen is the smaller dinosaurs should knock themselves out and fall unconcious to the floor.
Or alternatively find a way to climb over the fence or dig under it.
Or alternatively find a way to climb over the fence or dig under it.