Anyone can get HIV. We know that very few people ever think those "HIV testing commercials" are about them, because they're not in that high-risk group the narrator keeps talking about. Not them. No way. Not even possible.
But the truth is, if your friend's bodily fluids are coming in contact with someone else's body fluids, then your friend is at risk. HIV is an equal opportunity virus that doesn't check for race, religion, age, job title or future aspirations before taking up residence in the body. So remind your friend to be realistic about his or her exposure and know that there are ways to prevent HIV contraction and steps to take in order to stay healthy.