Originally Posted by
skauwt
with knives being illegal in the UK carrying a functional knife around with you can lead to a jail sentence in most cases
so for UK folk a proper sgian dubh is purely ornamental
How sad is that!
On topic:
If my hose are pulled up, I always tuck the sgian dubh in there. Except for the fancy dress one my mother-inlaw got me in Scotland 
all of mine have a useful edge. That being said, My sgians have been purchased as ornamental jewelry, based on the look of the handles, not the quality of the blades. I've carried a pocket knife for as long as I can remember, so while I have pulled out the sgian dubh if it was handy, I generally have a nice sharp folder clipped in my sporran for any cutting chores I might encounter.
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