Has anyone done much investigation into how google tracks clicks through proxymouse.com? A client has reported that clicking on a competitors Adwords advert loads of times in the morning uses up their daily budget and stops the ad showing for the rest of the day. Seems strange to me, if an Adsense publisher did this then they would probably get a ban(??) but Google seem happy to take the money and run with Adwords. Please don't all run off to use proxymouse to click on adverts.