No. Actually you can not trap or capture clicks to adsense because it is displayed in an IFRAME and the frame content is from a different domain (Google) than yours. Browsers prohibit this. That is why Google is using IFRAME to display the ads.
We developed an heuristic algorithm to guess the click indirectly, which involves analysis of some other events the visitor generated before leaving the document. Surely you have rigth to monitor the events on your page without interfering with Google code.