there is a black sheep in every flock, especially when the numbers are large
Definitions (粵典–words.hk)
語句
形容一個大機構入邊潛伏住一啲壞人 to describe how bad people hide themselves in a big organization; literally: a big tree has some dead branches
樹大有枯枝,估唔到佢響間大公司俾老細非禮。
树大有枯枝,估唔到佢响间大公司俾老细非礼。
syu6 daai6 jau5 fu1 zi1, gu2 m4 dou3 keoi5 hoeng2 gaan1 daai6 gung1 si1 bei2 lou5 sai3 fei1 lai5. There are rotten branches in big trees, she was sexually harassed by the boss in a big company.