I've never had any revenues to speak of with AdSense, so it'd be a bit hard for me to say. I have just logged in, though, and even though my latest report says "1 click", there's £0.00 accumulated. Maybe there's a problem with their reporting tools...
That might have been one of their own ads or a free community thing.
fury
Do you ever do 'mildly irritated' or is it straight to 'fury' every time?

I did seething once but it didn't suit me.