Many of Our Fears Are Irrational Sure, some of our worst nightmares stem from survival instincts and things that are actually dangerous. For example, I am absolutely disgusted by big, hairy spiders with their beady eyes that look like they want to eat you! It is reasonable to be scared of the spiders who could potentially kill me, although it also takes every ounce of courage I can muster up to kill some spiders that are of absolutely no threat to me. That’s irrational. One day I was at an exotic pet expo and they had a tarantula there. Growing up I couldn’t even look at tarantulas because they made…