I've always had the "they're watching you" thought running in the background of my mind. But, I have always ignored those thoughts.
Then I saw the Chrome logo. To me, it very blatantly looks like an imposing robotic eye, watching every move. I said: screw this, too f'n much. And I, incidentally, also moved on and also use Duck Duck Go. But, I still use Google as a spell checker every once in a while.
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Addendum: Google has the uncanny ability of making bad logos look nice.
Link to robotic eye logo: http://www.gadgetzone.ro/wp-content/uploads/2009/11/chrome-l... .