One of the funniest Isaac Asimov short stories (in which a play on words was central) that I have ever read was "Shah Guido G." from the 1975 collection called "Buy Jupiter and Other Stories, (which is actually one of my father in laws books, I have never seen a copy of it for sale anywhere in Australia. Anyway, it is a story set in Earth's own future, and where Shah Guido G. is the nickname of Guido Garshthavastra, the hereditary S-G of the UN(called "Sekjen" in the story), who is a tyrant who rules all of the Earth from the new HQ of the UN, a levitating island called Atlantis.
The world is split into the (literal) upper class who live in Atlantis, and the lower class people living on the surface.
Philo Plat is an aristocrat (who actually cares for the surface dwellers) and who secretly plots Shah Guido G.'s downfall, and the downfall of Atlantis in general. When he learns that the power stations that power the Sky-Island's anti-gravitational beams are close to critical (he was informed this when asking whether he would be able to build a larger house), Plat convinces Shah Guido G. to order in a division of Waves (female shock-troops) to be ordered back to Atlantis, in order to put down a supposed (invented) rebellion by the technicians (who actually run most the the city).
As Plat suspected, the extra weight caused by the simultaneous landing of all of the Waves' cruisers is sufficient to overload the Sky-Island's power generators, causing it to plummet to the ground and be destroyed, leading into the punch line of the story - that once again, Atlantis sinks beneath the Waves.
Which I thought was pretty funny for a Shaggy Dog story.
