Ahhh!!!! Clicking on Adsense Ads when they are your own is a no no. What’s going to happen? Are you going to get banned from the Google Adsense program? Maybe you better tell them so they don’t ban you? The Google Adsense blog has recently clarified what you should do in such a situation.
Google Adsense blog [Accidents happen](https://adsense.blogspot.com/2007/05/accidents-happen.html) - As most of you know, our program policies state that publishers are not permitted to click on their own ads for any reason. For this reason, we've received many emails from publishers letting us know that they've accidentally clicked on their own ads. If you're one of these publishers, we truly appreciate the efforts you've made to monitor your account and keep it in good standing. However, we do understand that an accidental click may occur from time to time, so there's no need to contact us each instance this occurs.
When you log in to your advertiser account, you get a cookie placed on your computer. It is my guess that they look at the cookie and don’t count that click.
I personally have a family, and who is to know what they click on. So I make sure that I only log on to Adsense via my personal computer, and not the families computers. And make sure that I clear the cookies if I ever did log on to Google via their computers. Best to be safe.
I have personally accidentally clicked on my own Google Adsense ad, and then emailed Google about it. I have even had my Google Adsense account closed. That was not the nicest feeling. I thought it might have been closed because I once clicked on an ad. However, after apologising to them and getting the account reinstated, I found that there had been many clicks on the ads in a short time period - nothing to do with me. I was relieved they had come to the same conclusion.
There is an Adsense preview tool available - click to download for ie, and adsense preview tool for Firefox. With a right click of your mouse you can see a sample of the ads that would appear for a page, and you can safely click on the ads with no charge to the advertiser. In addition, you can check the ads that would be seen in a certain country. Its a great way of seeing your Adwords competition if you have targeted outside your country.