maybe they can have a hairstyling flirt. So his hair becomes non greasy and clumpy
There's already precedent for both bathing and shaving flirts (or was that an LT?), so I don't see why not.
Unless of course Cailean has 100% resistance to grooming. Some people are lucky with their innate resistances, others not, after all.
Bah, people love Rasta Kelsey and, having known people with dreds, that can't be smellin' too good, mon.
Or perhaps--somewhat like Cailean--that's the disguise he had to come up with while certain jealous Bhaalspawns were hunting him down, axes at the ready. Continued breathing > Nice hair, some would argue.