In a tough economy, a professor breaches the rules on sponsorship for one of his classes. Kyle G. Volk, one of the professors in the history department at the University of Montana at Missoula, cut a deal with El Diablo, a locally owned taqueria, to sponsor his course, "The Americans: Conquest to Capitalism." In exchange for $250, Mr. Volk plastered the restaurant's logo on the syllabus, handed out the stickers to the course's 250 students and, on the first day of class, projected its stick-figure devil image, with horns, tail, and pitchfork, on one of the classroom's walls. His plan was to use the sponsorship as seed money for a department newsletter and other projects. But the sponsorship with El Diablo did not last long. The university informed the professor that the agreement violated a campus policy adopted in 1977 that states, "the use of paid advertising relevant to academic programs or offerings shall be limited to the dissemination of information rather than solicitation." Officials said Mr. Volk's arrangement with the restaurant was a "good-faith mistake," though, and did not punish him.