“Those things are deadly”
No, stupidity is deadly. It’s not the drink that’s the problem, it’s a seriously stupid kid dumb enough to think that you should drink 8-liters of virtually anything in a sitting.
Seriously. 8-liters of coffee for example. Even if it’s decaff, that’ll mess you up. 8 liters of soda? Yeah that’s a brilliant idea too.
Hell, even large quantities of water can be fatal.
8l of water in 16 hours can cause systems to shut down if you don’t have enough electrolytes.