Here's a scenario:-

Dealer- want something to make you feel good?
Girl- err no, I don't do that stuff
D- go on everyone does it here
G- Oh ok
D- here have a free sample

Next day

G- got any more
D- sure it's only x amount

Next month

G- I really want some but I'm skint
D- No worries, pay me next week

.....

D- You owe me X how are you going to pay
G- what, that much? I haven't got it
D- well you could sell some to your friends to pay off your debts
G- ok

Girl now becomes the dealer, but samples the goods

Dealer now tells girl that she now owes shed loads but there is a fool proof way of paying your debts and earning a bit for yourself. Hey you even get an all expenses holiday out of it.