Questionable Content explains the drawbacks of sentient computers. (You may also want to see this and this to get the full story.
In a completely unrelated story, Chrome, Google’s spiffy new browser has a socalled incognito mode: “For times when you want to browse in stealth mode, for example, to plan surprises like gifts or birthdays, Google Chrome offers the incognito browsing mode. Webpages that you open and files downloaded while you are incognito won’t be logged in your browsing and download histories; all new cookies are deleted after you close the incognito window. You can browse normally and in incognito mode at the same time by using separate windows.”
An incognito mode to plan surprises. Suuure. Better make sure to wipe the keyboard and screen as well after you’ve “planned”your “surprise”.