I looked around at some of the threads looking for the topic of how Google suddenly decided to do an experiment with the adsense ads that I didn't approve of.
Opened one of my sites up the other day and a rather large Google ad folded down from the top of the page covering the site menu and the first 3 or 4 topics and short of refreshing the page there was no way to fold it back up or remove it.
Logged into adsense and discovered that this particular site had been chosen by Google to run a so-called experiment -- Couldn't discover what the experiment was and had no idea why this particular site was chosen so I went in and shut the experiment off. Google might not have liked it much that I shut it off but in my defence I had no notice from Google before hand.
I don't have *auto-ads turned on as I place all of the adsense ads myself in areas of the pages I select in order to maintain a decent flow and appearance.
There's a place for ads and a place for content and I really wish Google would understand that.