This. but also with frontier. - People using devices without headphones - People having loud phone calls on speakerphone with vulgar language - People with b

This. but also with frontier. - People using devices without headphones - People having loud phone calls on speakerphone with vulgar language - People with bad body odor - People looking to optimize their outcomes, even at the expense of others and net deleterious. (Speaking in numbers, willing to take +1 point of selfish outcome at the cost of several others' -1 leaving a net negative for the group)