Beware of the dog
Warning signs of this sort have been found in ancient Roman buildings such as the House of the Tragic Poet in Pompeii, which contains a mosaic with the caption cave canem (pronounced [ˈka.weː ˈka.nẽ]). Some suppose that these warnings may sometimes have been intended to prevent visitors from stepping upon small, delicate dogs of the Italian Greyhound type.
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- Cheryl S. Smith (2004), The Rosetta bone, pp. 10–11, ISBN 978-0-7645-4421-7
- James Paterson (1877), Commentaries on the Liberty of the Subject and the Laws of England, p. 271
- Charles G. Addison, Horace Gray Wood (1876), A treatise on the law of torts, p. 285