First time OC is an exciting, traumatic, exhilarating, and heart-stopping experience (and probably alot of other emotions in there, too). Then you get similar feeling when you OC in a new type of business (like when we could start carrying in places that serve alcohol in TN).
The more you OC, the less nervous you and yor wife will be. My girlfriend (at the time) was not particularly happy when I started OCing. She eventually came around. The newer model is all for if from the get go.