Have you ever walked up to an ants nest and sprinkle water on it?  I have , I remember how crazy and unorganized the ants became because I ruined the routine ( sorry ants of my youth).  This is the similiar response tsa agents have when screening me.
I am  not a fan of the body scanner machines at the airport. I decided  for now on I will ask for a pat down. The first time I asked it threw the tsa agent off. The agent kept asking me why, as if it’s a bad thing. I told her I was not a fan of the body scanners.  She kept trying to talk me into it like a salesperson ….”you know your cellphone is worst”; my reply “So”.  Thus I have begun a journey of airport pat downs.  I never ask for a private room ….nope in the open , just in case.