I recently opted-out and received a double-your-pleasure extra pat down. I requested a witness from the airline (since they refused my intial request for a LEO).
The airline rep was really pissed at having to be there. Hopefully he said something to his boss someting about watching one man touch another man's junk not being in his "job description."
If the airlines aren't going to step up to the plate for their customers than screw them. I hope they start losing money again.