When is a dirk appropriate?

[Bruno]

The only time I've ever worn one was for Burns Night and I was doing the Address to the Haggis. Otherwise I'd say it's too much.

I have once or twice seen the groom at a wedding wear one to cut the cake or as you say Burns Night, but otherwise not really appropriate for most occasions.

I did see one guy walking round a gold club dinner with a Broad sword, I think he thought he was an extra off Braveheart.