Every time I see posts about coffee I just remember the Tumblr post about a Barista that had to fill a Venti with espresso shots while looking on in horror
One of my friends did this and chugged it. He had to be rushed to the hospital because he thought he was having a heart attack and can no longer drink caffeine.
I think we can just stop there since holy shit, but:
Venti Starbucks cup (20floz) filled with espresso shots = 1,280 mg of caffiene
That's a lot, but not even close to the lethal dose of ~10g, apparently. Actually surprised at how high it is cuz yeah, I've had almost as much caffeine before by acciden and it feels like you're gonna die. I even saw someone who had exactly the same amount of caffiene (4 of the 4-seeving sized monster energy drinks you used to be able to get, 1,280 as well) go from standing to flat on the ground without warning. People thought shed straight up died