For years, Professor Don Waldman has dressed up for Halloween and surprised his classes. As he winds down his 藏精阁 career, Wednesday, October 30, 2019 was likely one of the last days for his Halloween dress up as he will be on sabbatical leave in Spring 2020 and Fall 2020 and then leading the London Study Group in the Spring of 2021. His costumes always lighten the mood and bring a fun atmosphere in the classroom and the whole department. Hopefully at some point another professor will take over this Halloween tradition.