That is simply brilliant! If every single pro-gunner used this tactic when confronted by the idiots on the other side, we might get them to actually think a bit and change their minds (or at least STFU on this issue).
BTW, I hope that if your friend had taken you up on the offer that you'd have remained true to your words by "getting rid of" your guns - followed immediately by reacquiring the same. I know that I would...