When I was in High School we had a kid pass a note to another kid all subtle like. They both sat behind me in the same row. The kid did not even read it, he put it in his pocket but the teacher saw. She made him stand up and told him to pull out the note. He refused. She legit reached into his pocket and said something like "Lets see what you are hiding from class." She saw the contents and went white. The note said something along the lines of "Package left in 2nd trash can of the 3rd empty room" or something like that. The police found a small amount of Heroin and a 22 pistol with no ammo in the said trash can underneath some balled up papers. This turned into a mess where the kids both claimed neither one wrote the note and were not the intended recipient. The event never got punished because they could never prove anything other than the teacher saw 2 kids pass a note. About 4 years after graduation I saw on myspace, yup that long ago, that one of them died to an OD and the other was arrested for his murder. They never got him for the murder, but did got him on a drug charge.