I don't mean common ones like spiders and snakes, etc. I believe that fear of creatures is biological for survival againat poisonous ones. But I might just be making shit up.
I also don't mean social fears.
Anyway, I was talking with someone about this today, and here are a couple of mine:
1) Airing up tires. I get TERRIBLE anxiety while doing this for fear of them exploding and severely injuring me. I remember a story from when I was young about a man nearly getting decapitated due to a tractor tire exploding.
2) Driving under bridges. Once upon a time, I went to school for NDT which is an engineering offshoot which focuses on testing the integrity of structures without harming them. It uses methods like dye penetrant, ultrasound, x-ray. Anyway, a big part of this is weld inspection and bridge inspection. You watch all of these horrid videos of bridges collapsing to drive home how important the job is. Curiously, I dont get nervous going on/over bridges. Only while driving under them.