Banker's DozenThe opposite of a Baker's Dozen where the customer receives 13 of a product for the price of 12; in a Banker's Dozen the customer receives 11 of the product for the price of 12
Hector was surprised to find only 11 glasses in his gift of 12 glasses that he received from the bank. Later, Hector learned that the Bank offers a Banker's Dozen in their gifts and products, in which they steal one item.
This makes me laugh. Because bankers already have a pretty bad reputation but for it to have come to this is just hilarious.