balhamabob
In answer to your original question, it depends on who's interviewing you. Amazingly that it is, there can be discrimination if you are overqualified. I have noticed in various walks of life.
If the person interviewing you is a graduate and holds a professional qualification, he may welcome you. If however the person interviewing you is not the above, they can sometimes see you as a threat or a touch of the green eyed monster may appear.
If however the person interviewing you's ex girlfriend was a CA you might be in with a shout.