In a statement, headteacher David Clark said the woman - a teacher at the school for 13 years who has not been named - had resigned her position and left with immediate effect.

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"Over the past year, the impact of rising equity markets has outweighed the effect of falling bond yields and led to an overall improvement in the funding position, " the PPF said.

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For years, conservatives have argued such unions have an outsize influence in picking the elected officials who are, in effect, their bosses, putting them in a strong position to push for more jobs, and thus more political clout.

WSJ: Public-Employees Union Is Now Campaign's Big Spender

The Southeastern position, in effect, is that Michael Dell is acting out of simple economic self-interest and not out of his stated desire to hasten the transformation of the company without worrying about quarterly financial performance. (But, you are thinking, Gordon Gekko taught us that greed is good, right?) In short, Southeastern is saying that Michael Dell is seizing the day, buying back the company he founded on the cheap.

FORBES: Is Michael Dell Really Trying To Pull A Fast One On Investors?