David knew the ads were displayed on his profile, but could do nothing to remove them no matter how hard he tried.

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"The lawn needs to be watered, the cat box is stinky, there are dirty socks in the living room, silverware in the grass out back, and I can't get those children to get to bed at 7:30 no matter how hard I try, " he says.

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For a long time, he said, no matter how hard the medical team tried, it had no survivors.

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Just as it will be hard to oust Mark Zuckerberg no matter how many tech startups he buys without consulting his board (read: Instagram).

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