Don't you hate it when they do this on TV (Not for squimish)

So I'm watching Criminal Minds season opener, missed the first half so these two brothers are hunting people in the woods with hunting bows. Two women are being chased, woman 1 gets killed, woman 2 jumps out of the bushes with a knife, stabs the brother 1, who drops his bow. woman 2 turns and runs off leaving woman 1 dead, brother 1 mortally wounded and bow and arrows on the ground.

Brother 2 comes and finds brother 1 still alive and mortally wounded and goes off to hunt woman 2. Woman two is yelling somewhere so he follows her voice. Woman 2 climbs tree and jumps brother 2, stabs him and he is on the ground temporarily incapacitated and she turns and runs off again leaving brother two and bows and arrows ( second opportunity to arm oneself and disarm pursuer). Of course brother 2 revives, picks up bow and arrow and continues chase, only to be interrupted by the Criminal Minds team in the nick of time who shoot brother 2.

This always seems to happen. I would hope my first instinct would be to grab the weapon, whatever it was and take it and if possible finish off my pursuer. This woman had two opportunities to arm herself with the bow and arrows and chose to turn and run off. It seems to be a flaw in writers as they always do this to to the point it is predictable and annoys me.