What would happen

If someone came to your site and just kept clicking your links?

 

It's called "Click Bombing" and it's bad. It could get your account banned.

 

But Google is smart and they will automatically remove those fraud clicks, and refund advertisers. Its a different case if they came from your IP...

 

So a competetor could get you baned??

 

Well may get ur account banned or google may also ban the clicks from a single IP and ignore them..

 

Often the clicks are not counted as google know and are wise to this happening.

 

It is very possible for that to happen.

 

Google does not use only one method to identify invalid clicks.

They construct a full profile of the clicker, if it's fit to the owner then you got a problem.

I wrote a post about it few weeks ago you find at:

http://simply-adsense.com/blog/adsense-newbie/how-google-detects-invalid-click-in-adsense/


of course this not the real methods as Google will not reveal the ways because hackers will find a way to bypass it.

But it's a good point of view.