This section of the book is from the "Stories of Animal Sagacity" book, by William Henry Giles Kingston.
A dog of the Highland breed, belonging to Lord Arbuthnot, treated a thief in much the same way as my friend’s dog did the robber of his apple-orchard.
The servants, going out one morning, found a man lying on the ground, a short way from the stable, with a number of bridles and other horse-trappings near him, and the dog holding him by the trousers. Directly the servants appeared the dog let go his hold, when the man confessed that the dog had thus held him for five hours.
When a bad thought or desire steals into your heart, or, properly speaking, rises in it, hold it down, as the dog did the thief, till you are able to rid yourself of it.