My girlfriend started working in a swanky Italian coffee house/deli type establishment. Goddamn real coffee straight from the bean shits all over the instant dried crap you're all talking about. Espresso madness.
Also:
@Aristocrat, I just don't think you're cool enough to be effected by coffee.
Four triple shot espressos is down right dangerous for anyone without a caffeine tolerance.
Bullshit.
Espresso shots have more caffeine per volume, but less volume, of course. A single shot of espresso typically has around 60 mg of caffeine. Three of these is 180 mg. This is already enough to cause jitter in non-tolerant individuals. Four times this is 720 mg. It's not the LD50, but it is sufficient to cause caffeine overdose.