城狐社鼠 chéng hú shè shǔ

chéng hú shè shǔ set phrase foxes in the city and rats in the temples
Domain: Idiom 成语 , Subdomain: , Concept:
Notes: Referring to people who are unwholesome but can do little harm (Guoyu '城狐社鼠'; Mathews 1931 '城狐社鼠', p. 49)