Back in college days I used to drink [litre bottles of] Pepsi Max to keep me awake. But I stopped when I developed a taste for coffee and Innocent smoothies. Since then, I read this (link below) and I'm glad I stopped. Now I drink coffee all the time, which probably isn't too great either.
Disclaimer: Any sarcasm in my posts will not be mentioned as that would ruin the purpose. It is assumed that the reader is intelligent enough to tell the difference between what is sarcasm and what is not.
We did that back in school too. Nah I know its nasty stuff but it's the only sugar I get, and I live an (otherwise) healthy lifestyle so it isn't destroying me slowly. If I stopped moving I'd become a fatty
I recall a funny story where I asked my friend to buy me some diet coke and a small pack of mintos at the food stand. He didn't find anything suspicious until after he took the first bite of his hot dog and suddenly saw a column of pop shoot up within his peripheral vision.
He never fell for it again, I'm afraid.