This sign at my University with the number for the library police.

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image showing This sign at my University with the number for the library police.

RedHotChilliPeppaPig on October 11st, 2018 at 12:33 UTC »

Noise -79.661808,22.597913

Smokeoutx420 on October 11st, 2018 at 12:35 UTC »

They have a similar system setup at many newer stadiums and arenas. I know both Levi's Stadium and Golden One Center have signs poster around to text anonymously to report drunken or rowdy behavior.

WickedZombie on October 11st, 2018 at 13:18 UTC »

One of the best things my local library did was make the Young Adult section be its own, sound-proofed room (with clear walls), and to have little soundproofed study rooms. It lets teens have fun in the library without adults yelling at them, and if you absolutely need to get a VERY quiet place to get work done, you can go into a smaller, sound-proofed rooms.

Edit: A word