In a panel discussion titled HLS in the World | A Conversation with Six Justices of the U.S. Supreme Court [partially transcribed at Harvard At 200: Justices Look Back On Their Law School Days — And Beyond : NPR], Justice Stephen Breyer told an anecdote about retired Justice David Souter at the 1h36m58s mark:
STEPHEN BREYER: While he was an active member of our court, he's walking in the woods somewhere, a rabbit jumped on his back and bit him in the neck.
Was David Souter bitten by a rabbit?