I was thinking of Foggy confronting Daredevil and yanking the mask off and having the curse break because Matt/Daredevil's said something along the lines of "I am Matt Murdock/Daredevil" just seconds earlier and the curse can't compete with physical proof, so it breaks.

But the ninja fight's a good idea! Maybe, I can have him caged somewhere that nullifies the curse for a bit while the rest of his friends hunt down the ninja....?