Are we charged for repeated clicks?

Does Google discount multiple clicks?

[namniboose]

Sorry to be asking such basic questions but I can't find the answers searching the Adwords Help area:

I notice that there are often 2 or 3 clicks to one keyword phrase that appear around the same time (and I'm only getting a few clicks per day total) so I'm wondering if there is any way for Google to know if someone is clicking on ads multiple times or if this is just something an advertiser has to eat?

Thanks,
Aline

[namniboose]

Well, seeing as I can't delete my post I will add that I found some interesting posts at WW:

Daroz in 2003:

"The results I found provide what I'd call 'good' protection from massive clickers, but in almost all cases (except VERY close clicks) the first two clicks would be charged against you. I can see why and, for most low-CPC keywords I don't have an issue. (User visits, clicks 'back' and then the ad again results in another charge.)"

Frustrating with a low budget and high CPC!

This was posted a few years ago so things might have changed since then.

Any more recent info?

[Rehan]

Daroz in 2003:

"The results I found provide what I'd call 'good' protection from massive clickers, but in almost all cases (except VERY close clicks) the first two clicks would be charged against you. I can see why and, for most low-CPC keywords I don't have an issue. (User visits, clicks 'back' and then the ad again results in another charge.)"

That's the same behavior I've been seeing even in 2008. So I think it has not changed significantly.