[link|http://www.dailymail.co.uk/pages/live/articles/health/dietfitness.html?in_article_id=475021&in_page_id=1774&ICO=HEALTH&ICL=TOPART|http://www.dailymail...HEALTH&ICL=TOPART]
"A teenage waitress overdosed on caffeine after drinking 14 shots of espresso."
They go on to recommend no more than 4 cups of instant per day...and I'm reading this while drinking my 6th 16oz mug (of >my< coffee). Used to drink expresso in mugs...4 shots per mug...at least 2 mugs before going to work. No big deal.
I know, however, that my tolerance for caffeine is a bit different than others. Take the "crazy" man...for example;-)