[Larwee]

Another important tip to remember is to contact Google right away if you notice any unusual or suspicious activity.

I noticed some unusual activity on one of my sites and contacted Google about it. They thanked me for letting them know about it. They advised me that they had noted what I reported to them and they will monitor the situation. They also advised me that they might need to make adjustments for any days in which invalid clicks occurred.

That is all I wanted. I've always followed the rules and contacted them when I had questions. I have now contacted them when I felt there was a problem.

I've been with AdSense since it started. From what I've seen, if you follow the rules, don't try anything sneaky, ask them about things to be certain, and advise them of problems, Google will be reasonable and very fair.