By the way, if you try this, make sure you have the right kind of extinguisher... Or you'll just dump a bunch of crap on your beer and it'll still be warm... Like these guys did... Too funny!
Along those same lines... My buddy Erik sent me a link to a story about Kent Hodgson, a 22 year old inventor, who found a way to chill a beer almost instantly using liquid CO2. No fire extinguisher required!
The inventor of this device says that the technology involved in this little gadget is very simple. Here's how he explains it in his own words, "You have plastic cooling cells which are pressed down into the dock which houses the liquid carbon dioxide. The liquid CO2 expands and is pressurized into dry ice in the base of the cooling cells ... in a moment. You then pop it into your drink and then proceed from there as you normally would." -Kent Hodgson
Pretty cool, but I think I'd rather just use a fridge like normal folks...