The half-human/half-SIMCard organisms behind me here at Panera have both been on their mobile phones continuously for the last 90 minutes (which makes you wonder why they even bother sitting together.) At 3x normal conversational volume. And not in English (which shouldn't matter, but paradoxically it makes them even harder to tune out.) This particular cafe is short of AC outlets or I would have moved an hour ago...
The worst sin towards our fellow creatures is not to hate them,
but to be indifferent to them; that’s the essence of inhumanity.
— G.B. Shaw