I've done a few grams of the blow back in school and discovered it's kind of a waste of a drug outside of medical uses. Seriously I don't understand how people could get addicted to it (short high, expensive, ruins a good mirror, constantly have to check you nose after each hit, destroys your nose, biggest impotency-inducing drug, drips, makes you depressed after you come down)...great stuff.
The only decent part about it was it cleared sinuses and numbies were a cool bonus. As you can see the cons far outweight the pros.
...some of my supposive "friends" were at my house last night freebasing. I'm notoriously anti-blow and always have been...yet these clowns were busting my balls about not doing it last night. totally giving me the peer pressure you are taught about in DARE. fuckin' losers...a few of them do it regularly, at work, in the morning, whenever. what a waste of health