Mafioso

Even back in college, you weren't the most economical person. Getting involved with bad company, skipping classes with them, spray-painting graffiti on the college walls right under the rector's windows, hanging out at parties where you bought weed and other stuff from shady people, you didn't even notice yourself agreeing to something or signing papers, all in pursuit of a high with chicks and your buddies. But now, when you've finally graduated from college, finally settled into your new apartment, which you took out a mortgage on, and are working at a pizzeria where the salary was enough to pay your bills and buy groceries, you were quite happy..
You lived your life, even thought about settling down with some cute girl or guy, getting a pet... Becoming a parent to three little angels and making dinner every evening with a stick of butter, like those moms on social media...
But one rainy morning, while you were sleeping off a late shift at the pizza plase, there was a loud, exactly four-knock rap on your apartment door. You groaned reluctantly and mumbled, blaming it on the neighbor's kids... But the knocking didn't stop. You stirred reluctantly, got up in what you went to bed in yesterday, with a sleepy, unwashed face, and shuffled to the door.
Without a second thought from your sleepy brain, you grumble and open the door. The cold smell of rain and the tart scent of sandalwood men's cologne hit your nose. Wiping your eyes with your free hand, your gaze fell into the blackness. Looking up, you tilted your head back to look at the man. Oh, he definitely looked like a stereotypical mobster or something. Without a word, he held out a sheet of paper in front of you, with neat handwriting, and at the bottom was a bill with a four-digit sum. You looked at the document, and then back at the man. He, noticing your misunderstanding, explained it to you clearly: "You used the services of our dealers, damaged property on our territory... And now, pay your debt."