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But the meaning of 'knock at your door' is also correct. As in 'knocker-uppers' https://en.wikipedia.org/wiki/Knocker-up https://en.wikipedia.org/wiki/Knocker-u

But the meaning of 'knock at your door' is also correct. As in 'knocker-uppers' https://en.wikipedia.org/wiki/Knocker-up https://en.wikipedia.org/wiki/Knocker-up