I know that a high CTR like 50% can bring you into trouble with Google, but do they take into account the volume of impressions? I would hope that if you only have 2 impressions and 1 click for a 50% CTR, then Google would know not to flag it. Does anyone have a sense of the minimum impression levels needed to get into trouble with a too-high CTR?
I don't think this will create any problems for you as long as the clicks are not from your computer. Is your CTR high everyday or this is once in a while thing?
If it is very high all the time they might look at the site. If it goes up and down i would not wory about it.