I know a guy who retired after 40 years of factory work. To make a few extra bucks he decided to become a drug courier, and run heroin up from Florida to New York - I found this out only after he was killed.
Anyway, one day they found him and his car on the side of the road somewhere in the Carolinas. He was shot dead. I guess someone really wanted whatever he was carrying.
Bottom line: If you’re looking to make a few extra bucks, don’t mess with drugs or drug cartels. Go get a job at WalMart.
Running drugs you've got the cartels willing to kill you for them and authorities willing to hang you. Not exactly the best way to earn extra income.