I was taking the train south to north through Switzerland about 20 years ago (back when they still had smoking cars) and the kids in the Abteil in front of me were smoking some kind of funny smelling cigarettes that didn't stay lit.

The conductor came stamping down the aisle, with a grim look upon his face, and started to chew the kids out. They apologised, and he left, whereupon they continued to kiff but promptly put newspapers down on the seats across, protecting them from their shoes while they had their feet up...