I have a few. And they're strange.
I used to have this fear irrationally. Then I tried to face it, I walked through a field of cows and for once didn't have a panic attack. Then they started chasing me (like 30 of them). I was stuck behind a tree for hours whilst they head butted it and followed my every move. My Dad had to drive on the field with his landy rover and rescue me. Oops :S
I honest to god used to think they were the most beautiful things in the world. Then one attacked me. And capsized my Kayak. It was awfull. I thought I was gonna die. - Why didn't I hit it with a paddle I hear you ask. Honest to god the thought in my mind was "it's queens property, you can't hurt it"
(yes I am overdramtic at times - BUT IT FLEW AT MY FACE!!! :O)
I'm not so scared of heights. those I can do. But if I don't feel safe I get scared. I get scared when I climb on a foot high wall, I really don't like feeling pain.
This is the weirdest one. Is it triangles? Is it cubes? Is it 3D? Is it 2D?