I was recently doing some work in a hotel, and when I came to commit my changes back to my central subverson repository using git-svn, I got an error message that looked a lot like this:
Committing to http: //example.com/top_secret_svn_repo/trunk ... RA layer request failed: Server sent unexpected return value (400 Bad Request) in response to MKACTIVITY request for '/top_secret_svn_repo/trunk/!svn/act/7cc9df3f-2956-3669-8f25-45c093142061' at /usr/lib/git-core/git-svn line 3347
