瓮中之鳖

Explanation: The turtle trapped in the urn. Analogy has been under control, things could not escape. 　　Usage: Partial official; as object; containing derogatory 　　Source: Ming Feng Meng, "Yu Shiming words," Yang eight volumes old and a group of eighteen people who were Wonu capture, and like Wengzhongzhibie, kettle of fish, no place to dodge, only Suishun to Figure alleys. " 　　Examples: These little southern barbarian, considered only a ~, monks do not get home consumption sword, his one know what Jiufu discipline. (Qing Qian Cai, "said Yue Fei," seventy-sixth back) Thesaurus:  no danger of anything going wrong; infallible; surefire; be perfectly safe; cannot possibly go wrong, Bottom fish tank, Fish Tour cauldron containing boiling water, be in imminent peril like fish swimming in a cooking pot, go percent sure, Fish swimming in tank bottom, Boiling kettle of fish swim, Fish swim in a tank reactor, You scorch kettle of fish