借花献佛

Explanation: Analogy with what other people do a good turn 　　Usage: -Linked; as predicate, object, attribute; analogy with what other people do a good turn 　　Source: Yuan Xiao Dexiang "kill a dog to persuade her husband": "Since my brother had wine, we Jiehuaxianfo, and his brother on the life we." 　　Examples: Today, someone sent a very fresh chicken, hot to eat, well, I ~ the. (Qing Liu E, "Travels" The Sixth Round)