Report them on yelp and other ratings services.
I like your idea, with responses based on the scale of the intrusion. If they ask an adult a question from the checklist, that is different from probing with a child. I simply lie (no guns), or tell a partial truth (bb-gun, it's locked up, but that's not a firearm). If they ask a child, rather than asking the parent, and especially if they are visibly anti-gun, I would consider wrecking their career:
Yelp rating - Dr. Libtard is adequate. If you know what you need and keep him on task, he is licensed to write the prescription you need. However, he strays off topic with the "guns in the home" question when I was there for a flu shot not a gunshot, and even worse irrelevancies. He also gets way too friendly with young children, and I would not be comfortable allowing Dr. Libtard to see my child unless I was in the room.
That review is (1) truthful,(2) harmful to someone who deserves that harm. I'm tired of playing fair with liberals who are both evil and incapable of fairness.
Thank you for that advice. My doc office now has a one star rating on yelp. The next time they start their interrogation, I will give them fair warning that I will answer questions until they ask one that is unrelated to my health; then I will end the interview.