Discworld – The Light Fantastic (Terry Pratchett)

A few miles away Twoflower was also getting over his surprise at finding himself back on the Disc. He was sitting on the hull of the Potent Voyager as it gurgled gradually under the dark waters of a large lake, surrounded by trees.

Strangely enough, he was not particularly worried. Twoflower was a tourist, the first of the species to evolve on the Disc, and fundamental to his very existence was the rock-hard belief that nothing bad could really happen to him because he was not involved; he also believed that anyone could understand anything he said provided he spoke loudly and slowly, that people were basically trustworthy, and that anything could be sorted out among men of goodwill if they just acted sensibly.

On the face of it this gave him a survival value marginally less than, say, a soap herring, but to Rincewind's amazement it all seemed to work and the little man's total obliviousness to all forms of danger somehow made danger so discouraged that it gave up and went away.

Merely being faced with drowning stood no chance. Twoflower was quite certain that in a well-organised society people would not be allowed to go around getting drowned.

He was a little bothered, though, about where his Luggage had got to. But he comforted himself with the nowledge that it was made of sapient pearwood, and ought to be intelligent enough to look after itself . . .