Ah, but it's the accent. When reading Pratchett, the voice I hear in my head is more-or-less Billy Conolly, either from one of his commedy tapes, or as John Brown in the film 'Mrs Brown'. My wife can imitate the accent to a tee (and she's from Kent), I can't.

The kilt is due any day now (Gunn 16 oz Strome), so I've got that bit covered. The ability to disappear sounds useful.