This section of the book is from the "Stories of Animal Sagacity" book, by William Henry Giles Kingston.
An English gentleman travelling abroad was accompanied by a favourite poodle. On one occasion he met an agreeable stranger at an hotel, to whom, as they were both going the same way, he offered a seat in his carriage. No sooner, however, had the stranger entered the vehicle than the poodle, which had from the first shown a dislike to the man, manifested even a greater aversion to him than before.
They put up for the night at a small inn in a wild and little frequented country; and on separating to go to their respective rooms, the poodle again snarled at the stranger, and was with difficulty restrained from biting him.
The Englishman was awakened in the middle of the night by a noise in his room, into which the moonbeams streamed, and there he saw the dog struggling with his travelling companion. On being overpowered, the stranger confessed that he had come for the purpose of stealing the traveller’s money, being aware that he had a considerable sum with him.
You have not the instinct which has been given to some dogs, and which enables them, for their master’s protection, to detect persons harbouring evil intentions towards them; but when you meet with a boy or man careless in his conversation, a swearer, or expressing irreligious or immoral opinions, however courteous and agreeable he may otherwise be, do not associate with him a moment longer than you can help, or he will rob you of what is of far more value than a purse of gold.