That's to say, the hustlers who spent thousands on Mary Kay, Herbalife and Amway have failed to move any of their product (beyond a statistically insignificant number of sales to friends and family who quickly tire of being hustled and stop buying this substandard, overpriced junk). But *none* of these "entrepreneurs" knows it, or admits it to anyone - not their "downlines" (friends they've lured into the swindle), nor their "uplines" (friends who recruited *them* into the con).
2/