Ouch! You stabbed me. I need a band-aid and some Neosporin quick. That's about as worthwhile as a screen door on a submarine. Just my personal o-penguin on that little bee sting.
Well, I guess it would make for a nasty slash cut but, going a bit larger and longer would still be as concealable as a last ditch.
Too HAK-like diminutive for my personal preference. AKA HAK = Hardly Any Knife