How to not be discreet.

I'm currently on the subway on my way to school when a man started making these strange noises as he exited the train! It sounded as if he was saying “talk, talk, talk, talk, talk…”. I though he was referring to a group of college students, also on the bus, who were chatting to each other. When I turned around and looked at him more closely, I saw that he had something up to his face which was is a white bag. “Booze, no doubt” I thought. It wasn't until the overwhelming stench of glue, or maybe paint thinner, smacked me in the face. Was that guy huffing chemicals on the train??
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