I'm going to make a career out of selling drugs.
Where will you get your drugs from?
A drug dealer who has supplied me for years.
You could make a lot of money selling drugs but drugs are harmful to people and it's not okay to do things that cause others harm. Instead of selling drugs you should find an honest living.
People do drugs anyways, it's harmless.
Drugs do affect some people's lives very negatively. Most drugs are illegal so selling them would be very risky.