YOU SAID:
I dont think this silly thing works
INTO JAPANESE
私はこのばかげたことがうまくいくとは思わない
BACK INTO ENGLISH
I don't think this stupid thing will work
INTO JAPANESE
こんな馬鹿げたことはうまくいかないと思う
BACK INTO ENGLISH
I don't think this stupid thing will work
You've done this before, haven't you.