“`Er, hey Earthman...'
`Arthur,' said Arthur.
`Yeah, could you just sort of keep this robot with you and
guard this end of the passageway. OK?'
`Guard?' said Arthur. `What from? You just said there's no
one here.'
`Yeah, well, just for safety, OK?' said Zaphod.
`Whose? Yours or mine?'”

- Arthur drawing the short straw on Magrathea.