If your dog attacks a home burglar and he pulls out a knife with intention of stabbing your dog, is there any legal actions you can take?
Someone breaking into my house with a knife is a threat whether he is going after my dog or not. As my CCW instructor told me and many others probably teach the same; STOP. THE. THREAT.
"But when it's time to fight, you fight like you are the third monkey on the ramp to Noah's Ark; and brother, it's startin' to rain."