Bears. Big,. strong, fast, angry, huge paws, they can run and climb and swim – and be 9 feet tall all at the same time. WTF. No way. If I went camping in North America I'd be the one in the closed tank.
Also, bulls – don't mind cows but bulls scare the bejesus out of me.
And confined spaces. Went potholing once. Never again.
I almost didn't go to a job interview once because I had to use a lift. Fortunately I overcame my fear and gor the job.
And my nana's feet, clad in Amercan tan tights, being licked by her skanky poodle cross. That gave me the fear too. They're both dead now – so I'm a tad more relaxed these days.