As you may know, we are forced to stand inside it for several seconds with our arms held up as if we're common criminals
In truth, no one is required to go through the backscatter machine. The traveler can always opt out. I had a colleague who was afraid of radiation, and he always opted out. And I had to opt out a few time because of an injury that make the 'pose' impossible to accomplish. I explained nicely, and they were always quick to civilly and professionally accommodate me.
But the story does make one good point. You show up at the checkpoint with an attitude, and you are likely to get special treatment.
The last I checked, they're not mind-readers. My attitude was inside my mind as I quietly stood in line, so I'm not sure what you're talking about there, Par.