I used to train for them.
For two weeks before my scheduled mammograms I'd do some intensive training to get the girls ready.
Allotting 10 minutes for each "lady" I'd stand naked by the refrigerator and slam the door closed on them.
When that was done I'd lay down in the drive and have DH drive my jeep back and forth over each one.
Then we'd do 5 minutes in the workshop vice.
After a few weeks of that, mammograms were a breeze.