A counselor at China University of Petroleum in Qingdao sent 999 hongbao, gifts of money in red envelopes, to reward students who did not cheat during their exams. Zhou Hui promised to send hongbao for three days if none of his students cheated. Starting on Jan 9, Zhou began sending the electronic red envelopes with sums of less than 200 yuan to his students through the popular social app WeChat. He said he wanted to reward their honesty.