[GabrielF00]

I think it's reasonable for a professor to give some notice to students that they're about to be exposed to something graphic. If students want to avoid reading a particular piece or going to a particular event, then that's their choice as adults. I don't think it's reasonable to insist that things that might be upsetting should be removed from one's environment.

[cauterized]

Context matters there, IMO. If an image that someone finds incredibly disturbing is printed at 4x8 feet and hung in the lobby of a building a student has to enter every day to get to classes, it's not unreasonable for them to ask that it be moved. If that same image is in an exhibit in a gallery of the campus museum where it can be easily avoided, it's unreasonable to ask for its removal.