YOU SAID:
Singing in the middle of the night is a bad idea.
INTO JAPANESE
夜中に歌うことは悪い考えです。
BACK INTO ENGLISH
It is a bad idea to sing in the middle of the night.
INTO JAPANESE
夜の真ん中で歌うのは悪い考えです。
BACK INTO ENGLISH
It is a bad idea to sing in the middle of the night.
You've done this before, haven't you.