As mentioned, a fear of being pushed off great heights, rather than the heights themselves. And a fear of falling from great heights. (Sorry to say I'm no longer afraid of zepellins/blimps/airships/whatever, although they make me slightly nervous. I know others who are afraid of them, though.) Still nervous of mould... ;) ...and dead frogs. I think I'm scarred for life on that one. And it's wise to note that live ones don't bother me in the slightest.
