Don't want to pay me back, let me get you fired and then let you do the rest for me

To not reveal any names, let's call the person involved in this story Danny. Let me start off by telling you about my dear friend Danny. Danny used to be one of my good friends back in High School. We were together pretty often and spent a lot of time chilling. He started getting into drugs in 10th grade. He smoked A LOT of pot. He would borrow money from me to buy his weed and would always pay me back months later. Most of the time he would not even pay me back completely. But he was a good friend right? Anyways, long story short we remained ''friends'' throughout High School and then college happened.

Danny never went to college, instead he worked at an airport for a certain airline as a baggage loader. It was a job that paid a decent amount of money for a student. Especially for a student who bought 300$+ worth of pot every 2 weeks. Months went by and Danny started borrowing more and more money from me. (I KNOW, IM THE IDIOT HERE WHO ACTUALLY LENT HIM MONEY EVERYTIME HE NEEDED. HE WAS A GOOD KID IN THE BEGINNING AND ONE OF MY ONLY FRIENDS).

Danny already owed me over 1000$ after 4 months into college. As a college student, even with the help of my parents, money was sacred. Months went by and this fucker never paid me back. He didn't even call me to hang out or whatever. I learned through mutual acquaintances that he had started to sell pot brownies. He had made a big investment for the stock and started selling drugs. After what seemed like weeks, I finally got hold of him and I'm not going to go throught the conversion but he basically denied that he owed me that much money and hung up. Never answered my calls after that, always went to voicemail.

I got mad, I wanted my money but I was never going to get it. I decided to call the airline where he worked and notified them that one of their employees is a major pothead (other substances too) and had started to deal drugs. Now airlines take this stuff very seriously as he could easily transport weed from one place to another. I left it at that and went on with my life.

About 6 months later I learn that he got fired from his job and blew what he had left on more pot to sell. His parents got fed up with his shit, especially now that he had no work and spent his time at home getting high, so they threw him out. AND for the cherry on top, he got arrested with an oz of weed on him. Now where I'm from, that's pretty serious. He's going to be doing time for sure.

EDIT: Spelling mistakes.

EDIT 2: Way too many people are taking Danny's side on this one. Let me ask you, what would you have done?