Pocket Knife with Kilt

[KnittedReenactor]

I seem to recall a possibly apocryphal story that the sgain dubh was worn in a pocket under the armpit, only being placed visible in the hose when entering someone's home (or some such enclosed area). The idea being to be upfront with your host that you did have something pointy, and not concealing it.
Probably been debunked by those whose heads are screwed on tighter than mine, but still a possible stowage point for your knife.