Some courses are very image-rich. For those, I may have many "identify this image" questions in assessments. I don't want students to be able to right-click an image in a quiz to see the filename, but know of no way to prevent that, other than the honor system. The only technical option I can think of is to change a usefully descriptive image filename to something obscure. Of course, that makes it harder to me to work with a zillion filenames behind the scenes. Ideas?