reciprocity fuels contagious delerium

Imagine a bag full of semi-translucent marbles. Now imagine the marbles are made up of a form of non-melting perpetually cold ice cream. Consider the possible flavours of these ice-cream marbles and then answer the following question:

How many times did the person carrying this bag forget to count the number of ice-cream marbles that were in the bag prior to eating them one at a time until only the scent of them remained?