First off, I don't drink alcohol or coffee so I'm not familiar with the basics and can't speak to the effectiveness of coffee on alcohol, etc. But I have questions:
- Is it even effective to "sober-up" an intoxicated/drunk person with coffee? Does their alertness level increase? Or is that just something people try because it's done on TV?
- It would seem to me, seeing that alcohol and coffee are both diuretics, that this line of reasoning would only lead to dehydration -- so counter-intuitive to "increasing alertness."
But I don't know if there is an unsaid twist to this and everyone else adds something they're not mentioning that helps induce soberness without compromising hydration levels.