I've come across a number of strings and posts discussing what is or is not proper and PC attire when wearing the kilt at various functions and activities - most recenlty a topic of when and how to wear the dirk.

Where does all this information come from? Is there a "Rules-of-wearing-the-kilt" book somewhere that is the ultimate authority and that a majority of authorities agree with or is it more a matter of convention in various places.

How's a guy to know?