I never wear a dirk with casual wear, but I would if the notion struck my fancy. I just find that big ole knife a bit unwieldy.

But I do have both a regimental and a formal dirk that are very similar to PiobBear's. (He does have excellent taste, you know.) As to the dirk Panache is creating--it's a real beauty--I don't know that it wouldn't be appropriate for any occasion with the appropriate sheath. I was led to believe that a stag handle was considered OK for both formal and casual. In fact, I have a pretty slick looking sgian dubh with a crown stag handle that I rarely wear unless I'm dressed up.

Nice work, Panache! And nice selections, PiobBear. Maybe I'll get my stuff out and take some photos later.