What are you scared of, and how far do your fears go?
My biggest irrational fear is of spiders. I can't be in the same room as a spider without freaking out, yet alone one touching me. Even if a spider is contained in a box, I don't want to be anywhere near it. I can't bring myself to watch movies with spiders in, such as Arachnophobia and Eight Legged Freaks. I don't know where my fear of spiders came from, because according to my parents I used to always happily play with bugs when I was younger.
I'm also scared of jellyfish. If I'm at the beach I always watch where I'm walking incase there is one on the beach and I step on it. If I see a jellyfish in the water, I'll get out as quickly as possible and avoid going back in.
I also have little fears of things like wasps and daddy long legs.