Being negative is always bad, but for those who are treating negativity as signal or sign that they need to be careful, it saves their lives. IS there a time negativity helps you to survive the challenges of life?
Is really the negativity? or maybe they felt something odd and they are not comfortable but not necessarily negative thoughts? maybe they just became worried all of the sudden, (I believe all of us have experienced it) and not negative. That's only my opinion
I am a negative person so I know how this feels . I apply negativity sometimes, or listen to the negative instinct I am feeling because it serves as a warning or makes me prepare a plan b or c when it comes to decisions.