Well if you have any reason to worry that a loved one, be it a spouse or a child, is going to hurt you with a kitchen knife, it's probably past time to consider the fundamentals of the situation. There are usually warning signs that would allow a person to get away/get help for their spouse, or take their child to a doctor.
Btw, that is a great movie. We should also be careful of flying, killer rabbits. "FOR DEATH AWAITS YOU ALL, WITH NASTY BIG POINTY TEETH..."