I take a bit of the opposite tact, as I prefer to be treated like a criminal in private rather than in full display of the public. That and it forces them to use additional resources, as now two people have to be monitoring the pat-down.
Frankly, my largest problem (aside from the constitutionality of said pat-down) is the fact that the TSA agents seem to ask a lot of questions that they haven't thought about and don't really seem to want honest answers to. For instance, after opting out, I was once asked if I was I understood what would happen to me and if I was "comfortable with this process". When I answered "No, I think it's a waste of time and a violation of my Constitutional rights," that started a bit of a scene.
Another favorite is when they ask if I have any medical devices or implants on my body and I answer "Yes" and then they stand there looking at me in silence. Oh, you want me to describe them, well in that case, you shouldn't asked it as a yes/no question then!
Then we get to "Do you have any areas on your body that are sensitive to the touch?" "Yeah, mate, my whole body."
I realize I'm being difficult and something of a jerk, but I have no reason why I have to make it EASY to take my rights away. Sigh, now I'm probably on some list.