A curious story in CHE about some cases where things went wrong (it's behind a paywall); an excerpt:
[Sara Rachel] Chant and her husband, Zachary Ernst, were recruited [to Missouri] in 2006 from two faculty jobs at Florida State University. The philosophy department here wooed them with higher salaries, they say. The department also paid to transport Ms. Chant's horses from Florida and agreed to allow her dog—Alexander, a Great Dane—to accompany her to the campus....
Mr. Ernst went up for tenure first, in 2008, and got it without a hitch. But when it was Ms. Chant's turn three years later, the department voted her down. Most of the other decision makers up the line, all the way to the university's chancellor, agreed with the department's decision. They said Ms. Chant had failed to design new courses, that her syllabi weren't detailed enough, and that she had cowritten too many publications with her husband rather than publishing articles she alone wrote in top journals, Ms. Chant says.
To complicate matters, a few years before Ms. Chant came up for tenure she had had an affair with a philosopher outside Missouri, and Mr. Ernst, who was crushed at the time, is said to have told a colleague here that he actually wrote most of his wife's work. Mr. Ernst now says that's something he never claimed, but Ms. Chant says she believes that it was a factor in her tenure proceedings.
By the height of Ms. Chant's tenure battle, a few years after the affair had ended, Mr. Ernst had become a more outspoken advocate for her case than she was herself. He accompanied her to administrators' offices to wage appeals. And he dashed off a treatise he put on Facebook, accusing the philosophy department of sexism.
Some blogs covered Mr. Ernst's accusations at the time, though not this one--as I suspected, there was a lot more to the story. (Ms. Chant did subsequently get tenure after appealing the decision.)