One Purim I was at a yeshiva and I saw off to the side a few Bochrim rolling a few joints
It was not my yeshiva so I told my friend who was a bocher there and showed him the boys rolling.
He then went to the Rosh yeshiva and told them what he saw. Unfortuantly it was Purim and the R’Y had already began celebrating and was not in a position to stop them. He unfortuatnly did nothing because it was Purim.