Sales pitch?

This evening we ate at Ajanta "the jewel of India", which I maintain is the best place for dahl this side of the Indian Ocean. We started with soup (I had the palak soup, i.e. creamy spinach), followed by some of our favorite dishes there. After dinner we decided to order some masala chai, or spiced milk tea, so we called the waitress over. We ordered four teas, but she asked how many teapots we wanted. Not knowing how large the teapot was, we said, "four cups... four people." She responded by asking, "Do you want one-by-two?" We were still confused but figured that meant one teapot, two people, so we said, "two teapots, four people" thinking this had to be obvious.
A little while later she brought out 4 saucers, 4 slightly large tea cups and one medium-sized teapot. She placed the tea cups in front of each person and then began to pour tea into the first person's cup; she filled it practically to the brim. Later, we would all admit to thinking the teapot must be bigger than it looked to fill each cup that high. She filled my cup next; again, brimming with chai. Then she filled the next person's cup, practically overflowing. And finally, she began to pour the last person's cup, although by this point we all knew--even the waitress herself--that it wasn't a magical teapot. The chai trickled to a stop before the cup was even one-fifth full. We all looked at each other slack-jawed, and then at her. "Would you like to order another pot of tea?" she asked, to which we all burst out laughing.