I find it hard to believe hard core drinkers haven't shotgunned a beer, (exception to those that don't drink beer)... It's way faster than chugging down a pint. And if you aim properly you don't end up throwing up. And the best is that if you are having trouble, you can just stick your tongue over the hole until you're ready to go again.. Yay for beer!!! Unfortunately shotgunning is not allowed during our engg week boat races.. Boo..