Dudes you do know he does so much more than that? from the sleight of hand pick up of the chip to the magnificent contact of teeth and potato, light doesnt just eat a potato chip. his very action of picking up the chip is a comment on classism, when he picks up the chip, he is breaking the boundaries that exist between rich and poor. when he bites the chip, what comes out from his mouth is not saliva, but broken silver, showing that light has destroyed the very symbol that the wealthy revere.