There have been a lot of good replies from various perspectives so I won't repeat them. But here's something that hasn't been mentioned yet: It's not uncommon for someone to trust *you* but distrust a *gun* even if you're the one managing it. It's almost like the gun is a third person. This shows that he/she hasn't fully thought things through and come to an integrated understanding of the situation. There's no one way to rectify this, and several of the replies made so far suggest approaches that would work for various people. Hopefully you can figure out which approach will work with your wife.