What Makes a Good SEO Client?

I have read several articles on "Selecting a Search Engine Optimization (SEO) Agency" but something that we have been talking about in account services is the inverse of that, "What makes a good SEO client".

Nothing is more perplexing for us as SEO specialists and account managers as a client that...

* Doesn't implement our recommendations for page content, title tags, META tags, alt tags, etc. OR overwrites our recommendations
* Makes changes to their site or site pages without notifying us prior to making the changes
* Doesn't provide access to their site analytics OR doesn't take advantage of our web analytics solution - zWebTulz

Our clients that have the best ROI from SEO take full advantage of our SEO knowledge and proven methodologies. Why wouldn't they?... that's what they pay us for right!?