In high school, one of my friends rescued two lab rats who were about to have lab experiments performed on them... permanently, you might say. So she swiped two of the males and named them Indy and Rod. Rod, because this was 1982, and Rod Stewart was still reasonably cool ("Young Hearts" was his hit song at this time) and she liked him, and Indy after Indiana Jones. They were so much fun. Plus, hilariously enough, Rod Rat had the most enormous balls we'd ever seen on a male mammal. As he'd run across the floor and they'd drag behind him on the carpet, we'd just watch him and go, "Ow ow ow ow, Rod, ow ow..."