As we have seen with other issues like drunk driving and tobacco, humor can be an important, if not essential tool to call attention to the most serious of issues, and there are few issues as serious as unsafe access to guns in the home.
Do what you say you are going to do. If things have changed and you are moving in a different direction, be honest and clear with others. Be reliable and consistent. Admit when you are wrong. Apologize and make amends as needed.