If I saved someone and then saw they had a tattoo like that, I'd punch them in the face afterwards.
4 sure. But even if I saw before, there would be 10,000 articles from Alaska to New Zealand the next day writing "Jew leaves non-Jew to die because of hatred for his beliefs" and that it was because I thought he had a black ancestor, and it would make a problem the next day, so save and punch sounds right.