YOU SAID:
I farted on your head
INTO JAPANESE
私はあなたの頭におならした
BACK INTO ENGLISH
I fought on your head
INTO JAPANESE
私はあなたの頭で戦った
BACK INTO ENGLISH
I fought with your head
INTO JAPANESE
私はあなたの頭と戦った
BACK INTO ENGLISH
I fought with your head
You've done this before, haven't you.