"Where Are We Supposed to Hang Out? It's A Free Country Isn't It?"

Illustration for article titled Where Are We Supposed to Hang Out? Its A Free Country Isnt It?

Rotterdam's use of a device called a "mosquito" — which emits an annoying sound only heard by people under age 25 (to discourage groups of kids from loitering) — has supporters and opponents. [Spiegel]


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I want to develop a device that only parents of small children could hear.

I'd make a fortune selling it to restaurants. They could install it in the lobby.