The Market for Lemons cars, the dearth of formal credit markets in developing countries, and the difficulties that the elderly encounter in buying health insurance. However, not all players in a given market will follow the same rules or have the same aptitude of assessing quality. So there will always be a distinct advantage for some vendors to offer low-quality goods to the less-informed segment of a market that, on the whole, appears to be of reasonable quality and have reasonable guarantees of certainty. This is part of the basis for the idiom buyer beware. This is likely the basis for the idiom that
Beware of the Dog (song) UK Series 8 housemate Nabeel "Billi" Bhatti starred in the video. Beware of the Dog (song) "Beware of the Dog" is a song written by Jamelia, Stuart Crichton, Tommy Lee James, Karen Poole and Martin Gore, produced by Crichton for Jamelia's third album "Walk with Me" (2006). The single is notable for its sample of Depeche Mode's song "Personal Jesus" and was the second single released from the album, except for New Zealand where it was released as the only single. "Beware of the Dog" was the second single from Jamelia to enter the UK top forty on downloads alone.