fox in the henhouse

Etymology
A metaphor referring to the fox as a predator that would prey on the chickens if given an opportunity to do so.

Noun

 * 1)  Someone untrustworthy placed in a position of trust in which they will be harmful, damaging or detrimental for their own personal gain.

Translations

 * Chinese:
 * Mandarin: ,
 * Czech:
 * Finnish: pukki kaalimaan vartijana, kettu kanatarhassa
 * German:
 * Hungarian: kecskére bízza a káposztát
 * Italian: volpe nel pollaio
 * Japanese: 猫に鰹節
 * Livonian: neiku lambõd sieggõ suž lastõd
 * Norwegian:
 * Bokmål:
 * Polish: lis w kurniku
 * Spanish: