Marrying a pedophile or serial killer and having no idea that he is out there doing what they do, and then coming home and me kissing him/ having sex with him, completely oblivious.
I'm not scared of rejection or failure, as I've experienced both, and I see failure as helpful feedback of what not to do next time. For every success, there needs to be failure. Being laughed at is something I am afraid of...I used to be deathly afraid of ending up bitter and twisted...and then I turned around one day and realised I was.
It seems like whatever you are afraid of ends up happening anyway at some point...maybe because we fear it, that we attract the very thing we fear?
I do have irrational fears, like being buried whilst still alive. I have a distant relative that this happened to many years ago in Malta.
In Malta 35 years ago, they buried their dead within 24 hours, as it got so hot there...and no one realised that this woman had some form of catatonia, and they didn't notice it on her medical certificate until about 3 months later. They dug her up and found that she had tried to claw her way out of her coffin. THAT scares the bejeezus out of me...to know that genetically that might be something in my blood too.
Apart from that...Black holes. They have always terrified me. The thought of the entire planet getting sucked into this whirling vortex that goes on forever.
I do also have an irrational fear when I am on buses, that if the bus crashes, I will be impaled on one of the poles, or that my knees will be broken, and I try and position my legs in the best possible place as I can to prevent this, though in reality, if the bus crashed there would not be alot I could do from stopping or controlling my body from going flying whatever way the force of it dictated, so it's all probably for nothing.
Cicadas creep me out big time. I cannot understand why so many people find them so beautiful. They are like GIANT flies, with big red eyes. Beelzebub was once thought to come in the form of a giant fly! I don't believe in the Devil, but if I did, it would be a Cicada.