I loveeee raw celery.
Foods I hate:
-Raw onions. I love cooked, caramelized onions, but HATE raw onions.
-Mushrooms as a stand-alone. I like portabello burgers, or mushrooms ciced into things, but not alone.
-Yogurt - wish I liked it, but it's totally a texture thing
-Hot dogs. GROSS.
-Liver or other mushy meats.
I'm sure I can think of more.