University Of Michigan Poster: No Masturbating In Showers, Semen Related Costs Too High (PICTURE)

Apparently, the students at University of Michigan have taken a shine to polishing their pipes in the group bathrooms. We're meant to think this is real, but this sign and others were posted by a group of pranksters at the university. As TopCultured.com asks "what else is included in the semen-related costs"?