lucy24 - 4:55 pm on Mar 11, 2013 (gmt 0)
You can disable cookies for privacy.
If you disable cookies, the analytics program will not know that you don't want to be tracked.
The foregoing occurred to me after I knuckled under and added piwik's opt-out to the Legal page. I assume GA has something similar. After all, you have to be logged-in to G to keep your search terms secret.
Moral: You can't win :)