I’ve snuck knives through security multiple times, and it has always been an accident. I’ll usually get through security and then as I’m putting everything back in my pockets, I realize that there is a keychain knife on my keys, or that I forgot about a folding blade in my wallet.

I work in an industry where I sometimes have to cut a lot of rope. And I don’t want to waste time tracking down a knife every time I need one. So I’m in the habit of always keeping a knife (honestly, multiple knives) somewhere on my person. Even if I left my regular knife, and my multitool, and my keys (with my keychain knife) at my desk, I still probably have a knife somewhere weird like in my wallet. But that means I also have a bunch of random blades that I tend to forget about until I actively need them.