I remember a few years ago, some of my neighbors were western girls, all teachers, mostly English. I used to go clubbing with them sometimes and every weekend they would take all kinds of drugs, so it's not just bankers that do it.
I remember one time we were drinking in the old china hand and they got talking to some bankers and agreed to buy some drugs off them, they bought around 2/3K worth of drugs, the bankers suggested they go to the toilet and take some now. I was in another bar, when they came out of the toilet the bankers had left with the rest of the drugs and their money... And also left the girls their bill lol they called me to borrow them some money