@Davidvaini: That is a very important point. In a panicked situation, the wrong person with a gun could get shot. And in a shot across a crowded auditorium, especially in a rush, then that puts other people in danger.
Or security could burst in, and they would have no idea which of 3 or 4 people with guns is the actual gunman. That could result in extra deaths or injuries.
@ShowNoMercy: People get very drunk at my university. It's not immediately obvious to most people, but if like me, you're a crew member who gets to go around the "backstage" areas, including the emergency first aid section, you get an idea of how violent some people get.
Over a dozen people on some nights need some form of first aid, and only a couple of days ago there was someone with a broken arm and cuts to the face that will probably scar.
If that doesn't prove convincing, the regular pools of vomit that dot the nightclub floor show that excess is very common.
Put guns into that mix, and you'll probably get some real trouble.
The huge brain alteration is part of the reason I don't drink alcohol. Along with something of a dislike for the taste, I don't want to consume something I don't really like to warp my mind.
Besides, believe it or not, drawing actually has the same desirable effect of suppressing the left-side of the brain.
But pencil and paper doesn't cost half as much, doesn't impair my mental ability, and I have yet to have a hangover from drawing too much, nor am I ever likely to hear this sentence:
"Sorry, sir, I'm going to have to ask you to step out of the vehicle, I suspect you're over the Drink/Drawing limit."
Not to mention the results look better...
But most people don't know that, nor do they know how to draw. Pity, it's not actually that hard.
@BigGrib: I can't actually work that one out, because I'd need data for very specific circumstances. However, it's still going to be so low that wasting your time worrying about it is pointless.
The media has blown such events out of proportion. You are many times more likely to be murdered by a trusted friend or relation than you are to be fall foul of such an incident.
@JSR: How would one both cradle one's head (in your hands) and shake said hands at the heavens at the same time?