Was reading though the Adwords forum and after this thread:
Adwords Click Fraud Unacceptable [webmasterworld.com]
decided to post my own recent experience.
We just inadvertently tested a deactivated Adwords campaign. It turns out due to Credit card bounce (and total refusal of Google to allow non-google email address for notifications) our Adwords has been down for 19 days for our eCommerce store.
AND WE DID NOT EVEN NOTICE.
In fact, not even that we are having a months of our lives, we are actually averaging more $ per day than any other month in the past.
Month was so good it took me more than 2 weeks to pay attention that something wasn't right in analytics.
This is a solid NNNN per month campaign.
Hopefully this gives some hope to people who sing "what if google is turned off tomorrow" doom song.