We notice, looking at all these people opening boxes, that when people get to about 13 out of 15 pies, their perception shifts, they start to get a bit bored, a bit testy.
Primjećujemo, gledajući sve te ljude koji otvaraju kutije, da kada ljudi uzmu 13 od 15 pita, njihova se percepcija promijeni, postaje im pomalo dosadno, pomalo su razdražljivi.