You guys, don't worry about regular coffee. A single espresso has WAY more caffeine than a regular coffee, even though they're tiny. So seven
double espressos is probably more caffeine than most casual coffee-drinkers consume in about a month.
Double or not though, that girl is an idiot. Seven single espressos are also REALLY REALLY BAD for you.
A few weeks ago I was taking Benadryl for allergies and I took two before week, which was a bad idea because they made me drowsy... like to the point that my co-worker was talking to me and I realized my eyes weren't actually open

. So I went and got a mocaccino at Second Cup. SO TASTY, but I started having heart palpitations and I thought I might die. Heh. I think that was the caffeine + Benadryl though, not just the caffeine.