I was just goofing around with my long dagger and I thought how cool it would be to be able to throw it. By changing weapon mode its model would turn upside down and it'd become a throwing weapon with just one ammo, not much better than a normal throwing dagger.
I can imagine having a short-ish (You can't have long duels with daggers) duel ending with the other throwing his weapon, missing and finding himself without weapons at all. Good times.