Tao Zhi thought silently, "Why don't you play by the rules?"
He was a student in the experimental class at Second Middle School and quick on his feet, "Even if you can drink a lot, you surely won't be able to finish the next ten or twenty bottles, right?"
"What I want to tell you is very simple, you really only need a little bit of water at the beginning, the rest of the water is of little value or significance to you."
Tao Zhi's thoughts were clear, and he spoke more smoothly, "Just like the promotion in front of us, the second cup at half price seems like a discount, but in reality, it's just a scheme to make you pay and increase their profits. This marketing strategy doesn't suit you."
Tao Zhi broke down the rationale and explained it to his peer in detail. He was quite pleased with his performance, feeling he had saved an ignorant young man from going astray.
He asked, "So now, think carefully, why exactly did you buy the second cup of milk tea?"
