I worked dorm crew until the job got in the way of all the labs I had to take. (I left without quitting; I asked a friend who lived in my dorm to pick up my final check.) Anyway, two things:
1) I walked in on a junior examining her breasts;
2) I was assigned to clean the bathroom of current New York Magazine film critic David Edelstein when he was a senior; I'll never forget him because he was the only person who ever really talked to me --he even offered me a drink!
Finally, I caught on really fast that dorm crew just wasn't something one does beyond the first semester of college.