Death by Caffeine

Just this past week (I put in roughly 80 hours, according to my timesheet) I was idly wondering which of the many cups of coffee I was downing would be the one to push me over the edge into a fatal cardiac arrhythmia.

Turns out, I didn't have to wonder. Here's a site that'll tell you how much of your favorite caffeinated beverage it'll take to send you on to your final reward, wherever that may be:

Energy Fiend » Death by Caffeine