YOU SAID:
I scared my cat so he ran away
INTO JAPANESE
私は猫を怖がらせたので彼は逃げました
BACK INTO ENGLISH
I scared the cat so he ran away
INTO JAPANESE
私は猫を怖がらせたので彼は逃げました
BACK INTO ENGLISH
I scared the cat so he ran away
That didn't even make that much sense in English.