Coke is one dark drug. I fucking hate the stuff. Did it twice and I was left crying on the comedown both times. Maybe I've just had bad stuff but those two experiences were enough for me to conclude that coke REALLY does not work well with me.
But in general, I think it's disgusting what that drug does to people. After a few snorts everyone starts to look like flies anxiously waiting their turn to climb onto a giant pile of shit. It brings out the worst in people: greed, uncontrolled desire, impulsiveness, inauthenticity and superficiality.