無事獻殷勤，非奸即盜 [无－献－－－－－－盗]

Jyutping mou4 si6 hin3 jan1 kan4 ， fei1 gaan1 zik1 dou6
Pinyin wú shì xiàn yīn qín ， fēi jiān jí dào

Definitions (Wiktionary)
  1. proverb
    one who offers unsolicited hospitality must be harboring evil intentions

無事獻殷勤，非奸即盜 [无－献－－－－－－盗]

Jyutping mou4 si6 hin3 jan1 kan4 fei1 gaan1 zik1 dou6
Pinyin wú shì xiàn yīn qín ， fēi jiān jí dào

Definitions (粵典–words.hk)
  1. 語句
    無端​白事​討好​你​嘅​人​，​通常​都​有​陰謀​或​壞​企圖
    one should be careful of people who, for no readily apparent reason, are too eager to please; literally: when someone tries everything to please you without any good reason, he is either a scoundrel or a bandit