This particular incident went down before the "David Letterman was Boinking his Staff" thing came to light, but I'm sure that TA had full-color high-resolution visions of how he would have been treated had he gone through with it, even granted the fact that the student was a legal adult. Because as we're all painfully aware, inappropriate situations between man and woman are, more often than not, blamed on the man.
The oft-voiced "double standard" goes both ways, you know.
Letterman caught a lot of heat for what he revealed, with many outside female observers calling it "coercion" and "predation" when there was no evidence of it. They forget that those women -- and the student in this rofl-tastic example above -- are all grownups with the ability to make their own decisions and take responsibility for their own actions. I've heard about this "innocent victim of creepy bosses/authority figures" horsepuckey way too often. It becomes a wall behind which someone can hide when she doesn't want to own up to her own weaknesses, because she knows that no one would ever disbelieve her.*
*No, this has not happened to me. Shut up. I just get worked up thinking about it.