And it doesn't only occur in a vulnerable, naked state either. In fact, most times I am fully clothed when I experience a paradoxical reactor. Some girls even use this device for flirting. "I'm really ticklish there! Don't do it!" I haven't figured out this perfect science yet: using PRs to my advantage; most of the time they are the bane of my orderly composure.
To illustrate: Look at the phrase, "calm down." I don't know what mother, meathead, pretentious snob, or "friend" thinks when they offer this gem of advice to anyone, but the lesson needs to be learned that the opposite happens. Whether I am overly- angry, excited, loud, happy, or worried; telling me to calm down will only inflame my anger, subdue my excitement, presumably make me get louder (shudder) and eliminate all happiness, probably from both our lives. Bottom line, I won't calm down. I have developed a flow chart to demonstrate what I mean.
*Note: The rate at which you tell me to calm down has a positive correlation with the rate at which I do not calm down