Submitted this to r/trees and didn't get much love. Maybe you guys will like it more.

One day a doctor decided to do an experiment on 3 people with different vices. He chose a sex addict, an alcoholic and a stoner. He took the sex addict to a room filled with all sorts of women, men and and sex toys that the sex addict could imagine. The doctor told the sex addict that he would check on him in 3 weeks to see how he was doing. Then closed and locked the door. He then took the alcoholic to his room which was filled with every liquor, beer and wine that the alcoholic could drink. The doctor told him the same thing as the sex addict, that he will check on him in three weeks and see how he was doing. Then the doctor closed and locked the door. Then the doctor took the stoner to his room which was filled with every strain of weed imaginable and every kind of piece to smoke out of. The doctor told him he will be back in three weeks to check on him. Then closed and locked the door. The three weeks had passed and it was time for the doctor to check on his patients. He goes to the sex addict's room first, opens the door and finds the guy dead. He had fucked himself to death. The doctor sighs and moves onto the alcoholic's room. The doctor opens the door and finds the alcoholic dead. He had drank himself to death. The doctor, now frustrated, walks down to the stoner's room. Not expecting anything good, the doctor opens the door and sees the stoner in a fetal position, crying in the corner. The doctor asks what's wrong? The stoner peaks up and goes "DOC!!! Tell me you have a lighter!"