I have a friend whose daughter is giving her a really hard time. This kid stood up in the school cafeteria and announced that she was going home to smoke pot, and that she had a plant.
Within a short time, the police went to my friends house and upended EVERYTHING in her place. That may have been to the tipping point for me. My friend is straight as an arrow. She was crying and shaking. Coming apart.
Keep in mind that somebody could do the same to you if they don't like you. It's a witch hunt.
If someone announces to the world that they are going to go home and comit a crime what do you want the cops to do, ignore it?