Cialdini kaže da bi ta reklama bila čak i djelotvornija "da je Indijanac plakao nakon što bi vidio nekoga da baca smeće u čistoj sredini, a ne u zaprljanoj sredini".
Cialdini says the commercial would have been even more effective, "if the Indian cried after seeing someone throw litter in to a clean environment, rather than into a littered environment".