a Saw trap seems to be the most vicious sort of thing that could ever happen to me. It's chosing between horrible pain and living and horrible pain and dying, in a split second.
I agree with someone who said human malicious intelligence is the worst thing. It's far more scary than all fiction, cause it could really happen technically.
Also a noteworthy beast :
-the Moorwen from outlander
* Moorwens can produce bioluminescence in most colors of the visible spectrum, most commonly red.This glowing is used to attract prey and seem also to portray feelings such as anger.
* Moorwens have thick skin resistant to fire and invulnerable to damage from common metals.
* Moorwens have long, thin tails sharp enough to cut flesh, skin, bone, and some building materials.
* Moorwens are good swimmers and can hold their breath for a long time.
* Moorwens pile up body parts from which their offspring feast upon.