Quote Originally Posted by Innuendo View Post
You were meant to push the smaller one first to release the gas pressure; then the larger one to drink from. Opening up the smaller one allowed the fluid to flow faster out of the drinking hole. I remember some having so much pressure it was impossible to open the small one - especially if some bastard shook the can!
Or, if you were a bit crafty and kept pressure in the can while you were drinking it, you could just crack the small blister/ opening eough so that the drink would flow when you leaned the blister against one of your teeth and re-seal when you took the pressure off the blister. That way you could drink the contents without "apparently" opening the can.... Great trick for a schoolkid to then have an empty can which which to fool his mates...