ah man i get a little tight sometimes about being asian too but 'punchable face' is relating to your actions/responses rather than your background this time. it's kind of like being called a douche. no real threat of violence. it's not the nicest thing, but it's not the end of the world, you'll be fine. i'd rather be called a douche by somebody i'll never meet than have something racial said knowing that shit will exist whether or not that person knows anything about you.