有殺錯，冇放過 [－杀错－－－过]

Jyutping jau5 saat3 co3 mou5 fong3 gwo3
Pinyin yǒu shā cuò ， mǎo fàng guò

Definitions (粵典–words.hk)
  1. 語句
    即​係​寧枉​勿​縱​，​寓意​人​做​嘢​寧願​做​多​啲​，​都​唔​願​冒險​做​漏​嘢​。
    a Cantonese saying which is akin to "better safe than sorry"; literally: better to kill some innocent people than to miss some criminals, in which case the saying is akin to "better reckless than sorry"
    • 老師同學生講：「你哋如果冇人認邊個上堂講粗口，我就有殺錯，冇放過，將你哋成班都留堂！」
      老师同学生讲：「你哋如果冇人认边个上堂讲粗口，我就有杀错，冇放过，将你哋成班都留堂！」
      '' If none of you admit to swearing in class, all of you will have detention today. Better reckless than sorry, isn't it?'' said the teacher to students.

有殺錯，冇放過 [－杀错－－－过]

Jyutping jau5 saat3 co3, mou5 fong3 gwo3
Pinyin yǒu shā cuò4 mǎo fàng4guo

Definitions (CC-CANTO)
  1. to not let any thing be missed; to not let anything escape; ruthless, indiscriminate killing [colloquial]
Examples (粵典–words.hk)
  1. Cantonese
    老师同学生讲：「你哋如果冇人认边个上堂讲粗口，我就有杀错，冇放过，将你哋成班都留堂！」
    老師同學生講：「你哋如果冇人認邊個上堂講粗口，我就有殺錯，冇放過，將你哋成班都留堂！」
    • '' If none of you admit to swearing in class, all of you will have detention today. Better reckless than sorry, isn't it?'' said the teacher to students.