It started with the cohort system and spread to the Thursday night pub, Wharton Follies, TalkTalk, study groups, group projects, grad student dorms, off-campus house parties and the weekend the entire class of 1990 spent at the Jersey Shore.
Roshni Ganguli, a 26-year-old law school student from California, said she was supposed to be putting a deposit on an off-campus apartment on Friday but may reconsider.