1.   But once a herd of llamas got loose and thundered through the park.

2.   Contemporary art has always thrived on the herd instinct, and when the herd gets wind of an event worth seeing, everybody comes.

3.   It soon become apparent, says Money, that the in-bred herd got whiter and whiter.

4.   It takes two days to get here, three if the yak herd gets cranky and demands to be fed.