Of course, like all the informal inhabitants of the University the roaches were a little unusual, but there was something particularly unpleasant about the sound of billions of very small feet hitting the stones in perfect time. Rincewind stepped gingerly over the marching column. The Librarian jumped it. The Luggage, of course, followed them with a noise like someone tapdancing over a bag of crisps.
Terry PratchettIn the Ramtops village where they dance the real Morris dance, for example, they believe that no-one is finally dead until the ripples they cause in the world die away - until the clock he wound up winds down, until the wine she made has finished its ferment, until the crop they planted is harvested. The span of someone's life, they say, is only the core of their actual existence.
Terry Pratchett