I've gone most of my life without really knowing anyone who is involved with multi-level marketing, aka pyramid schemes. Honestly, I kind of pity some of the people who get involved with them. But save for a couple of suburban moms I know tangentially, I've been kindly spared from solicitous direct messages from boss babes about how their products - or joining their team - will change my life. Until this year. It would seem my cousin has fallen prey to the seductive lifestyle that so many MLM g…