Terry Pratchett. To arms! To arms! (№ 160223)

For a moment, he came up with the idea that any person who rushed to their heels at the sight of rushing at him with tremendous speed of Detritus, you can be in violation of the act of Lethal Stupidity from 1581. But now was not the time to think about this. Someone was running and they caught up. They were catching up because he was running and he ran because they chased.