If there is one thing society can learn from the soap opera now engulfing tech zillionaire John McAfee, it is that rectal shelving is the best way to take the psychoactive drug MDPV, marketed and known colloquially as bath salts. “Measure your dose,” McAfee wrote on a psychonaut forum two years ago, under his Stuffmonger handle. “Apply a small amount of saliva to the middle finger, press it against the dose, insert. Doesn't really hurt as much as it sounds. We're in an arena (drugs/libido), that I navigate as well as anyone on the planet here. If you take my advice about this (may sound gross to some), you will be well rewarded.”