And not because I have a gut reaction to invertebrates (although I do). Octopi scare me because they're apparently very smart, and have a twisted sense of humor... which somehow equates them to "demons" of some sort in my mind...
First, there was Otto, who got bored at his aquarium in Germany and decided to climb out of his aquarium enough to short circuit the lights and require someone to come in the room to fix it for him.
Now, apparently an octopus in California flooded her aquarium by opening a valve.
Smart and sneaky, these things can open bottles and kill a shark!
I think they caused the financial meltdown, personally.