I am a humanoid creature that is normally extremely docile. However, when someone views my face I will enter a stage of considerable emotional distress. I will cover my face with my hands and begin screaming, crying, and babbling incoherently briefly before chasing down the person who viewed its face.

I will not stop until it reaches the person's location, after which it will proceed to kill them. Afterwards I will regain my composure and become docile once again.
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btw thats not my gender its just my mortal enemies ;)

The blind