Gave the housing people another phone-call to tell them that my roof was still leaking. Didn't manage to get much more of a reaction than:"Well, we already called the people upstream, there's not much more we can do about it".

Mentioning they were clueless twits fucking up (possibly in a somewhat raised voice) did manage to get some sort of a reaction (if a lady screaming abuse at me on the other side of the phone counts). Roof is still leaking though. *sigh*

Voted for the European constitution.