Space Mumps is an illness portrayed in Red Dwarf. The illness manifests itself as the afflicted person's head swelling to several times its normal size in an extremely exaggerated way, filled with a mucous-like substance. Dave Lister suffered from this illness in the first half of "Justice", prompting the Cat and Rimmer to insult him, most notably by comparing his head to a cantaloupe and the Taj Mahal. Lister felt much better after this, and showed no signs of the illness after this incident. (RD: Justice)