美国新泽西州一名小学校长戴维斯先生为遵守对学生的承诺,傍晚爬上校舍屋顶,度过一个寒冷的夜晚。此前,他曾对学生说,如果他们在几个月内读完一万本书,他可以任由学生处置作为奖励。学生提前完成读书任务,他们选择的奖励是,把戴维斯的头发剃出学校名称缩写“HP”字样,并让他在屋顶住一个晚上。 Davis, a primary school principal in New Jersey, USA, abided by the commitment to the students and climbed to the roof of the schoolhouse in the evening to spend a cold night. Earlier, he had told students that if they had read 10,000 books in a matter of months, he could give students a place to be rewarded. Students complete their reading assignments ahead of schedule. The reward they choose is to shave Davis’ hair off the school name “HP” and have him stay on the roof for a night.