What did you do in college that made you feel the most rewarding?

When I was in college, I was a monitor in a fog. At that time, I had no concept, and I was no different from my classmates. I should skip class and fail. It's rare to have my last class (computer department), that is, playing dota with my roommates in the computer room. Then one day, the Communist Youth League secretary chatted with me at breakfast, saying that a girl in the class was a poor student and was reluctant to buy herself a down jacket (God knows how terrible the winter in Shanghai is). At that time, I suddenly had a magical sense of responsibility I contacted all the boys in my class privately (there are more boys in the computer department, so it is more convenient for boys to visit the dormitory). Everyone chipped in to buy a down jacket for the girl. I think this may hurt girls' self-esteem, so I have been lazy like a pig. The first time I used the monitor's right, I held a class meeting and said that the class fee was too high. I will draw a lottery at the end of class to give everyone a welfare and give the clothes to the girl in the form of winning the prize.