I did that for a long time. My favorite part is when they say "Do you have any sore or sensitive areas?"
I always say "my penis" and they say "uh.. well.. I'm not going to touch that"
Me: "When you slide your hand up until you meet resistance? That resistance is my penis. You're going to touch my penis and it's a sensitive area."
oh my GOD I'm wheezing here :D
I fly next week, I will have to decide whether having this conversation is worth not trying to get out of the opt-out procedure. The difficulty will be keeping a straight face.