Whoa! Creepy things that pretend to be real, but don't really look real, like mannequins in museums, creep me out.

I swear, something like being thrown out of the Pirates of the Caribbean boat at Disneyland and having to walk to shore past the pirates to an exit would be among the more traumatizing experiences I could imagine. Or being trapped several hours behind the glass at a museum with taxidermic animals or semi-life like mannequins would likely result in suicidal post traumatic stress.

Ehhh, and don't even get me started on wax museums... though they are generally a bit too kitsch to be all that horrifying.