Attending his second year in college, Justin's primary concerns were passing his classes, and figuring out exactly what sort of career he wanted in the future; so it's not surprising that he realized far too late that his slacker roommate turned out to actually be an ancient blood-drinking monster (not that this discovery has done much to change their relationship).
Lance might be a lazy, sardonic, people-eating predator... but at least he pays the rent, and really, what more do you need out of a roommate?
