I personally believe the Heroin Beer phenomena occurs as a result of excessive stimuli while drinking. Is it not the same effect as having afternoon beers? I know most people can have a couple of beers in a beer garden in say a Lilac Fest or the Stampede and feel way more intoxicated than if there were to have the same number of beers that evening at a Bar.
Because the Saddledome has lots of lighting (as opposed to a bar) and many more stimuli we are out of our conditioned environment while normally intoxicated. I believe that we just aren't used to being "buzzed" in a setting where acute perception and attention are required to follow the game. Besides there are no play by play analysist telling us whats going on and we can't figure it out for ourselves.
