"You won't have it said that..."?!

[Sophie]

While I was doing my homework, I met a sentence like that:
You won't have it said that you're always late for school.
It's very strange. I don't understand it meaning. So can anyone explain it for me?
Thank you very much.
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On earth there is nothing great but man, in man there is nothing great but mind.

[Mister Micawber]

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You will not want people to be able to say that you are always late for school.
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Native English teacher at Mister Micawber's