Your fury
Other than that:
Snakes - don't know what it is, I am just terrified of them. Fortunately I don't think about them unless someone is 'kind' enough to put up a sign that says 'Danger - Snakes'. Then I become a nervous wreck.
Deep Water - Mostly this relates to the sea. I don't like swimming where I can't see the bottom so I can only swim in swimming pools and places with really really clear water.