1. Spiders! Well they top the list of many bugs that creep me out, but especially spiders, and especially sac spiders, EW.
2. Cutting (surgery/amputation) on people who are not under anesthetics. blech! Even hearing about it makes me shudder.
3. Eating Fear Factor style, like sea cucumbers, prairie oysters, etc. Even eating raw eggs will make me gag.