Honk

The following happened today between 2:30pm and 2:40pm CET.

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me: (looking around the room at everyone, also looking around in confusion)
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me: Does anyone know what that means?
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colleague 1: Adliswil just became a harbor?
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me: Seriously...
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colleague 2: They're testing the early warning system.
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me: I thought Switzerland liked quiet.
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