A popular watering hole adjacent to the Chicago Board of Trade called the Cactus Club that was populated by young bond futures traders and trading clerks used to sell a t-shirt cautioning, “Don’t drink and trade.”
It was put out in jest and probably not always adhered to but the underlying theme made a lot of sense. Trading is an emotional exercise—especially for those in the heat of the action inside the now antiquated trading pits—where judgment is extremely important. It is easy to let those emotions overcome you in the heat of the action as it is, let alone if your judgment is impaired by alcohol or drugs.

