Here is a fun story at the Google Webmaster Help of a webmaster who said his rankings dropped the day after he got in a fight with his AdWords representative.

As you may know, Google has said time and time again, AdWords and organic search have no influence on each other. There is a church and state separation between the two.

Here is what this webmaster had to say:

Of course when someone posts something like that in the Google forums, the top contributors go at it and have fun.

They started picking apart the linking schemes and stolen content on the site.

The webmaster deleted his posts but once it is out on the web, it is there forever.

Here is a Matt Cutts video on AdWords and organic search:

John Mueller from Google did respond to the thread saying:

Forum discussion at Google Webmaster Help.