Consider this. Any one that you want as a client will have their head screwed on straight. Any one like that will hear her say things that are ridiculous and think to them selves that she is nuts. Really, she will be a great source of good clients for you and she will keep the ones that you don't want. Consider her a filter for crazy clients, if they pass the test and see that she has a screw loose then you potential want them as a client.
I have seen similar things in my business and worried about it at first just to find that business got better in the end not worse.