When I was first coming around I was told that I am responsible for anything I put in my mouth. My own personal feeling is that non alcoholic beer, wine or whatever, is for non alcoholics, but to each their own.
I've had I think two instances since I've been sober where I've had a mouthful of booze. The one I remember is an office party at a long ago job where my boss handed me a glass of what turned out to be a mimosa. I reflexively spit it out; recoiled as if from a hot flame like is says in the book. If I finished the drink and went for another it's another story.
-allan