I would be too hard on yourself about it. I would discourage using loaded firearms though as accident tend to happen, but I guess if the gun isn't loaded then it takes away from the danger and excitement of it. I think fear play is common fetish for people. I think bondage falls into a similar category. But bondage being more power less to control what happens and fear being affraid to control what happens, but with Tue addition of stress and a racing heart from being in danger and out of control.

I don't think you should feel ashamed or humilated about it. Embrace what you tale pleasure in as long as it isn't hurtful to yourself or marriage or either of you or your partners mental well being.

Me and my wife enjoy bondage and domination/submission. It is not the norm, but it gets thing exciting and more enjoyable. Feeling powerless brings a sense of danger and risk. Feeling in control bring a senseof trust from your partner. You trust you partner enough to participate in risky behaivor, I would be ashamed in that. It also sounds like he enjoys it as well so I don't what is wrong about it.