guys, no interface error or any other error. i know this can happen and is not normal though. this happens if a guy try to click bomb your website inorder to get your account banned. watch out. this happens, if a guy, 'right-click' on an ad and select 'open in new window'. if he does this for 8 times on a single page on 8 different ads, its 1 impression for 8 clicks...!!! i think its against google to show your earning data in public.
use AdLogger » Open-Source Click Fraud Prevention and Click Monitoring then report to google when you see a sudden increase in clicks from the same ip.
this looks something unusual, i feel someone is trying to click bomb and get you banned, shoot a mail to google about this
agreed, 100% same feel as you. try log all the act from that. report to google with zero delay on the file.