... approximately half the million inhabitants of this nest decided that the activities of Roger and Alastair were inimical to their well-being, so they poured forth to remonstrate. One minute Alastair and Roger looked like two earnest gardeners turning over their asparagus-beds in preparation for a new crop and the next minute they were executing leaps and twists and pas de deux that would have been the envy of the Moscow Ballet. This was accompanied by wild, tremulous screams of agony, interspersed in equal parts with blasphemy and procreative oaths.
...
The chief problem was that Alastair was wearing shorts and an ancient pair of baseball boots, and this did not give his legs any protection, so the ants swarmed up him as though he were a tree, attempting to tear him to pieces. Roger, if anything, was in worse case, for he was wearing elegant, fairly tight-fitting trousers, up which the ants flowed with speed and precision. Those on the outside bit right through the thin cloth and into his flesh. Those on the inside concentrated on getting as high as possible before beginning their assault, so that Roger was being bitten in the most intimate and tender parts of his anatomy.
...
'Did you see that?' panted Alastair, his spectacles misted over with emotion. ' The buggers were trying to defoliate me.'
'What about me?' said Roger. 'Me they go for the private parts. Me they try to make eunuch.'