Is it odd for a Supreme Court Justice who just stepped down (rather suddenly) from the Supreme Court, where they have lifetime tenure, go back to work at his old teaching job? Sounds like something somebody might do who just got fired. . .
Former Supreme Court Justice Stephen Breyer Rejoins Harvard Law Faculty
https://today.law.harvard.edu/justice-stephen-breyer-returns-to-harvard-law-school/
https://today.law.harvard.edu/justice-stephen-breyer-returns-to-harvard-law-school/