YOU SAID:
you are crazy and mentally incapable.
INTO JAPANESE
あなたは気が狂っていて精神的に無能です。
BACK INTO ENGLISH
You are insane and mentally incompetent.
INTO JAPANESE
あなたは非常識で精神的に無能です。
BACK INTO ENGLISH
You are insane and mentally incompetent.
That didn't even make that much sense in English.