Does any body here use energy drinks before their workouts (sugar/low-cal, of course=])

Wondering if theres a point where it becomes dangerous. I have drank a redbull or two before a football match if ive had a big night the night before, but generally i steer clear from them.
But i recently ive seen a new energy drink called SPIKE SHOOTER. its in a
4.4oz can and contains 300mg of caffeine per serving.

Am i the only one who thinks this could be dangerous before vigourous exercise?

Any thoughts...

I don't subscribe to the school of thought that you have to load your body with carbs or taurine/caffeine or other stimulants nor take Pre Workout shakes, PWO shakes, pre-morning run supplement etc Just do it naturally (IMHO).

it is really a personal thing, if you feel you will benefit from these drinks then of course consume them. However, do not consume too much of these products because everything has side effects, both negative and positive so it is important to remember moderation.

There are some drinks that have very low negatie side effects in comparison to their benefits, so just chose a drink that is more "pro", than "con".