So Florida's canker mechanics are all upset that a bad law was passed that restricts their First Amendment right to ask their patients about firearms in the home.
While it is none of my doctor's business what sorts of tools I keep around the house, it's his or her right to speak. With very few exceptions, the government has no business curtailing what someone says.
I've given this some thought, and I would ask my doctor why he wants to know this. Second I'd ask if they currently own any firearms. (Hey no one said I couldn't answer a question with a question.) Third, if he didn't I'd invite him to come to the range. I would try to show him how much fun going to the range can be.
Barring all that, should he refuse to simply drop the matter, I'd go find a doctor that left my tool choice to me and tell him to mind his own damn business.
Update: Newbius in comments left in this post, pointed me at this. That works, I'm certain a lawyer would have a field day with a doctor's testimony after signing that.