Panic

I know my fear of large hairy spiders is somewhat irrational. The huntsman spiders that I really dislike are mostly harmless and often more scared of me than I am of them, while I'm quite content to be within a few inches of a deadly redback spider (they can't move very fast on those little spindly legs, can they?) But the big, hairy, eight-legged beasts really give me the creeps -- possibly because of occasionally sharing a bedroom with a massive specimen or two when I was growing up on our farm.

Therefore, I will not be volunteering for an experiment like this one, because I really don't need an MRI to tell me that the panic centres in my brain would light up if I saw a tarantula crawling towards my feet.