i often get this on low-traffic pages.. user comes, clicks on the ad, the ad sucks, they hit the back button and click another ad.. if this is the CTR for your entire site, then i'd be worried..
yeah happens to me sometimes on very low page impressions. In addition to what Tearabite wrote, I suspect it happens with people opening more than one ad in multiple windows or tabs.
Indeed, high click through rates are brought by low traffic websites from my experience, so until now you got a solid idea of whats going on with 3 people saying the same thing.
Make that four people. I had a low traffic Link Unit have a 300% CTR yesterday. There is really nothing you can do about it. If there is a problem, Google will just invalidate those clicks.
yes low traffic pages this occurs sometimes. as sometimes you will have 3 people visit a site and 2 of them will click two ads... no worries unless it happens often....