Aircrew knives / Movers. Now THAT is a new topic.
When you have to enforce regs that are from above - way above the pay band of a Cpl Mover - you do it. Do you think that regulation was made up by that Cpl? Did it make his life easier to do that? No it bl00dy didn't! Were you a passenger on that flight? Yes. Do passengers need to carry knives? No.
You were a bl00dy passenger, not operating crew.
I felt a complete tw0nker when my guys were taking Gerbers, Leathermen etc off people to fly in a VC-10, but it was not difficult. I am capable of free thought, but there are so many regs for travel in aircraft (PAX and freight) that it is best to follow them fairly well (don't want to upset the captain). You may not care if said Cpl ends up in prison, but I do.
Think you'll find things are a little more chilled these days. I never agreed with giving aircrew knives - they'll just get bored and cut themselves.
And relax.