Personally, I'm not into energy drinks at all. But I did try one last year simply called "Cocaine". My friend bought a pack off eBay because apparently it was outlawed in the U.S.
That meant we had to try it.
Cocaine said one can was the equivalent of 3 1/2 Red Bulls. My buddy said he had one the night before and tried going to sleep but couldn't. He felt like running. So he went outside and ran around the neighborhood for about 90 minutes without stopping for a second.
So he got me all pumped up.
I drank it. Nothing happened. And I actually went to sleep a few hours early that night.... disappointed.
The End.