Scarves are pretty effective weapons. You can innocuously wear them out in public either as a scarf or as a belt (if it's too warm for a scarf unless it's one of those lightweight decorative scarves) and when someone is trying to kill you, you can strangle them with it.

Unless he's using it as a whip in which case I wonder what it's made of XD

I really like character driven stuff, good characters can definitely save weak plots.