Free conference call services mean your entire clan can sing happy birthday to you at the same time.

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Unidentified People: (Singing) Happy birthday to you.

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Unidentified Child: (Singing) Happy birthday to you.

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So, Happy Birthday to you David Galbraith.

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Norman, you need to join Facebook or I may never wish you a happy birthday again.

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Fifteen seconds - a good thing to remember is you could sing "Happy Birthday" twice in that period of time.

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That means you should stand there at the sink for as long as it takes to sing happy birthday twice.

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