I had forgotten that you are in the UK, and continue to be amazed at how similarly we think on a variety of topics.

Nope, you don't need Neeson's actions. And I'm so glad you don't. But, I think here in the US, (maybe). Sad that faculty has to go through shooter drills, and what to do in case of gun violence in the classroom. And those seem outdated or irrelevant in the constantly changing landscape.