Just to complete the gallery:
The responsible one has left the building but it's been pretty effective so far in getting people to fix the build a.s.a.p. :)
Also, the latest version of BuildBotIcon has optional sound, and currently we have Homer Simpson going 'DOH!' or 'Woohoo!' (rather loud). This makes everyone aware of it instantly.
(And yes, I've been reading lolcats too much lately..)