From the introduction: What does it mean to be a Leech? Primarily, it means you've traded in your very humanity for the trappings of wealth. The ultimate focus of your life is to suck the money from your vict..patients, though you may pretend to other obsessions. But though it means you may never interact normally in human society again without some dolt hitting you up for free advice about his gross and embarrassing problems, there are some advantages.