A man sold pigs in a rush, and 20 pigs were not sold in the dark, so he went to a farmer's house to stay.
The young woman said: it is inconvenient to have only one person at home.
Male: Please give me a pig.
Female: Okay, but there is only one bed at home.
Male: I am also sleeping in bed, and I have another pig.
Female: Agree.
Discuss with a girl in the middle of the night. I will go to bed with you.
Male: give two pig.
Female Yun: the request cannot be moved.
Shao Yao, the man couldn't help it. He begged for a moment, and the female refused.
Male: Give it to both ends. Female consent.
The male stopped eight times, and the female asked why not move?
The male said that the pig is gone.
The female whispered, "why don't I give it to you ......
After dawn, the man whistle to catch 30 pigs (including 10 of the young women's family ......
Harvard instructor's comment: To discover potential user needs, we must guide and cultivate user needs in the early stage. Therefore, the investment generated is in line with the development rules.