Like it. You could also have a cartoon showing a bloke receing the news of a drought order restricting his use of the garden sprinkler. For some reason he appears surprisingly unconcerned - then you see his garden, getting a good old soaking from the water springing up through the ground from all the leaking water supply pipes.

Interestingly our friends at Thames Water piss away 915m litres of water per day equivalent to 261 litres per property per day. Turning off the tap while cleaning your teeth (as advised) will save typically up to 5 litres - to my mind this is very much a problem with the supply and not the demand.
 

Evening Standard Reader, I wonder? Interesting that it is actually you who is now infringing copyright. There is no copyright in an idea but copyright will attach to the Evening Standard cartoon. (Pretty obvious and unoriginal idea in any case - I thought of it myself years ago during a drought in the 70s; no self-congratulatory 'weblogs' around then of course).
 

Tucola is not infringing the copyright in the cartoon (or the publication right) because he has a "fair dealing" defence to a claim of infringement - namely the reporting of current events. This defence is available so long as there is a "sufficient acknowledgement" (i.e. of the cartoonist and, probably the publication in which it appeared) - which IMNSHO there is. Furthermore, Mr. Pants is correct that there is no copyright in an idea, but Tucola could (if he had very deep pockets and were sufficiently arsed) construct a novel argument of a "dimensional shift" reproduction of his own copyright work - namely the description of the cartoon as entered on this blog if he fancied taking a pop at the cartoonist and the Evening Standard. Not sure it would fly, but plenty of barristers and judges would love to engage in an intellectual w*nk-fest over the question. IP GURU
 

Like it! Dimensional shifts are what it's all about!