対たい岸がんの火か事じ

expression, noun

someone else's problem; fire on the opposite shore

Idiomatic expression meaning a matter that does not concern oneself; literally 'fire on the opposite shore'. Often used when someone is indifferent to a problem because it doesn't affect them.

• 彼かれにとっては対たい岸がんの火か事じだったが、私わたしたちには大だい問もん題だいだ。

  To him it was someone else's problem, but for us it's a big issue.

• 隣となりの部ぶ署しょのトラブルを対たい岸がんの火か事じと思おもっていたら、自じ分ぶんの部ぶ署しょにも影えい響きょうが出でた。

  I thought the trouble in the neighboring department was none of my business, but it ended up affecting my own department.