The bystander effect/Genovese syndrome: http://en.wikipedia.org/wiki/Bystander_effect http://en.wikipedia.org/wiki/Bystander_effect Perhaps the effect is quite

The bystander effect/Genovese syndrome: http://en.wikipedia.org/wiki/Bystander_effect http://en.wikipedia.org/wiki/Bystander_effect Perhaps the effect is quite different when there is just one other bystander, as opposed to a whole crowd of them.