I would like to be what appears to be the 1st person on this thread to point out one key idea:
we have these things called "laptops" with "wifi" access technology. Typically you should be able to unplug your power cord, stand up and move your feet to quieter areas.
My mac laptop also has command-Q technology built into all my programs -- including chat and email.
Also I have these things that go over my ears and delivery music.