Why would anyone put a sign like this up on her store?
If I liked your store before, now I’m on notice to be careful–it might not be as good.
If I didn’t like your store before, why on earth am I paying attention to your little sign and why should I go out of my way to take another chance?
This is a vivid symbol of the ego-centric nature of most marketing. The sign is about the owner, not about the prospect.