Terry Pratchett said this quote

“ Looking out the window, Moist saw a small swarm of goblins leave the train and at first he thought, ha! Trust the buggers to run away, and then he mentally corrected himself: that was storybook thinking and with clearer eyesight and a bit of understanding he realized that the goblins were scrambling up to the delvers on the rocks and beating the shit out of them by diving into the multiple layers of dwarf clothing. The delvers discovered all too rapidly that trying to fight while a busy goblin was in your underwear was very bad for the concentration. ”