How good sites go bad

A client of mine posted this link on my Facebook page. She hoped she wasn't like the client portrayed here:

"How a Web Design Goes Straight to Hell"

The client who setn me this was not bad at all.

However...

I have dealt with clients EXACTLY like this, and it is VERY difficult. At some point, the relationship and money are no longer with the time and pain.

Do you have any client horror stories?