David Correa draws our attention to an 'incident' in Oregon where a single-mom and her children came home to find a man hiding in her closet. (See the link for details.)
She shot him dead.
SOME PEOPLE LIKE TO THINK that the only time you are justified in armed defense is when you KNOW your invader is armed and you KNOW that he intends to do harm.
Those people are a dying subspecies: they do not take into account the natural instincts of a Mother.
Lesson Learned: the female of the species is more deadly than the male.