I'd go at it from this angle, go up to whoever gave you the form to fill out and say
"I have two problems with this question:
The first, whoever wrote this question is not well informed on the many new safe storage options currently available, what this means is I spent a bunch of money to make sure my firearms are as safe as possible (hey, this might have been that lethal forces training....) but because your questioner is ignorant of then, what do i do? Do I check the worst box and get poorer insurance rates, or do I check the best box, which is more accurately assessing my risk, but that is lying and could cause policy revocation."
"Second, I realize you guys are computing data to decide how risky I am. Still, certain things are off limits to me. If you had data on Presbyterians being more unsafe that Baptists, I'd not answer your question about what religion I am, If you had data on people inclined to vote for Hillary Clinton were safer than people who plan to vote for Barrak Obama, I might recognize the relavance, but I'd stil say for me that question is off limits. These are of course just examples, and no one is asking them...yet."