have been busy and busy…and busier…but not progressive with my reading. cannot think of anything to say, but just read something in the toilet which i found really interesting–something that’s posted on the toilet door from inside, which goes roughly like this:
"When you use these toilets please consider others and make sure it is fully flushed–even if it means you need to do it several times until it is clear." (in print, big black bold letters, styled ‘Times New Norman’ on a piece of A4 paper)
then someone else answered below on the margin of the page in handwriting, with a blue ball pen:
"Do you suggest spending 10 to 15 minutes each time waiting to have enough water accumulated? One flush is enough. Anyway, it is a toilet–not an art gallary!"
well, it is purely citation from others but there is no way i could find out who the authors are and i’m not sure whether anyone will claim copyright of it–but as far as copyright is concerned, i’ll have to make a disclaimer (in case of plagiarism) that it seems it is a piece, or rather two pieces of work by two female Phd students in the University of Aberdeen–God bless academics!
and, personally i guess sometimes two flushes might be needed, and the claime of "10 to 15 minutes " is definitely exaggerated–it takes 1 to 2 minutes, to be sure.
深蓝空间 
I saw it several times as well, cannot stop laughing at how aggressive and ridiculous a female PhD could be. But anyway, this is a loo in the PhD’s building (where gathers most of PhD students in the School) so I thought, same as your idea, it must be written by female PhDs, however I didn’t doubt about this until you read it, in which case this loo is not only used by the PhDs there, I now suppose.
broadly agree… but it would most probably be some residents’ piece of art rather than from passer-bys like me though, as only regular users would care 😛
you know, PhD stands for Permanent head Damage 😛