Toting with the kids is definitely not going to be her thing in the near future. If she ever accepts the idea, it'll be me carrying and only when I don't have certain (or any) kids with me. Like I noted, she says she has a very "vivid imagination" about what at least one of our kids could do. Grabbing it out of my belt and yelling "BANG BANG" while pulling the trigger is a very real possibility to her with him. The other is so angry sometimes, and has a rather large chip on his shoulder toward me for personality reasons (teenagers!), and his impulse control when he's in that state of mind is a legendary zero. Even I could imagine him "having enough" and pulling it away from me to threaten me or use it on me.
As someone else mentioned in the thread, maybe I just need to wait a bit longer until the (two) kids are more mature and hopefully don't have so many behavioral issues.