YOU SAID:

The dog humped my leg

INTO JAPANESE

犬が私の足をぶつけた

BACK INTO ENGLISH

the dog hit my leg

INTO JAPANESE

犬が私の足にぶつかった

BACK INTO ENGLISH

the dog ran into my leg

INTO JAPANESE

犬が私の足にぶつかった

BACK INTO ENGLISH

the dog ran into my leg