This has been causing a bit of a problem for me lately. One of my classmates absolutely reeks of body odor, it's very clear that he does not shower, and he usually will wear the same clothes for several days on end without changing. He seems to be unaware of it. If he sits near me then I want desperately to get up and move but I don't want to interrupt the class or call attention to it. But the odor is so strong that it's noticeable from the instant he walks into the classroom. Obviously there's the very tangible problem that it's gross. And I know this may sound a bit snobbish, but it's a 400-level physics course and I find the lack of respect he's showing to the class to be a little irritating. The issue isn't that he doesn't own enough clothing. He has many outfits: the problem is that he'll wear the same one for so long. And I know for a fact (at least by looking at his user stats on Steam) that he isn't so busy that he can't find time for a shower. I just need some advice on how to approach the issue delicately.