I am sitting here at my desk looking at one of my two sgian dubhs, I use it as a letter opener. Now I know any knife can be deadly, but mine can't even cut paper. I know, I just tried. I only wear it or its mate at private functions where I know that I will not cause a comotion or risk arrest.

The funny thing is that I regularly carry either a Leatherman multitool or a Kershaw folding knife clipped to my kilt belt. I would never go to work without one or the other.

The sgian dubh has a 3.5 inch fixed blade that has never been sharpened, while both my work knives have approx 3 inch blades that I keep razor sharp. Go figure.