I agree with the wet feet one! I just hate stepping in water on the ground, like at pools. It creeps me out and people then think I am crazy causing me to launch into the 'that water has been there for god knows how long, god knows how many disgusting people's feet have been in there with their various disgusting foot diseases, and the bacteria has been multiplying, especially if it's out in the sun and EWWWW!' rant.
Giant babies also creep me out. Like in movies. You know how they blow up a baby and then the baby is lumbering around destroying things and instead of having the cute little baby voice they've got a huge deep slow-mo type voice. It scares me and makes me want to cry. Same with the giant gingerbread man in Shrek 2.
And spiders. And I live in Australia. A giant hairy orange and brown spider crawled past me on my car window. I screamed.