This question is asked alot... You CAN get high CTR IF clicks are legit!!! I have friends who have 50% CTR and higher ( i saw with my own eyes). My friend's pages are all MFA however....
maybe because i was worried to see one my my sites getting high CTR ? btw guys, do you think visitors from Search engines are more likely to click since they are purely targeted ?
Just remember one thing, Whenever you see a sudden change in CTR , like going up from avg 1% to 10%, contact google immediately . Just my $0.02