Apart from the prospect of some sweaty bloke I've never met before playing around with my wottsit's, which I would probably be scratching anyway, and having my backside felt up... which again, I might also be otherwise scratching, the only really uncomfortable aspect of the pat down is having to hold ones arms in the air at 90 degrees for a long time. My personal workaround for being forced to keep my arms in the air is to tell the TSO that I cannot lift my arms beyond about 10 degrees for more than 5 seconds due to extreme pain. I do this when they ask if there are any sore spots on my body. Sometimes I am asked why I cannot lift my arms and I have politely informed them that my medical history is not relevant, - this has so far been respected without escalation, though I am expecting that to occur sooner or later. The chief benefit of declaring a rubbished set of arms is multi-fold: 1) The pat down appears to proceed faster than usual. 2) It proves that a TSO can perform a perfectly acceptable pat down without a passenger having to keep their arms in the air for three minutes. 3) It provides the passenger with control over both the process and over the TSO performing the patdown. 4) It makes the TSA and the american security establishment in general look like the baboons that they are when one leaves the checkpoint area pulling a 15kg rollaboard and a 18kg computer bag and they can't do anything about it. Of course, one needs to have pain prescriptions and a record of painful arms in ones medical record in case one has to defend oneself after the fact. 5) If one declares that only one arm is rubbished, one can hold the other arm up at a higher angle, exten.the fingers of that hand outward and make a hitler salute toward the supervisors podium. YMMV, but this works for me.