I have been mocked most of my life for this one.. but here goes...
I do not like chocolate. I just don't like it. I don't like the smell, and I don't like the taste. Whenever I tell someone for the first time, the announcement is always followed by a gasp of horror.
I am also not a fan of warm fruit, as in desserts that have cooked fruit as part of it. Yes, this means I do not like apple pie or bananas foster, etc.