You can take a beer down in about 6-10 seconds with this method. You need about 3 cans of beer to practice this. Get an unopened can and turn it over. Get a knife and poke a hole in the side near the bottom, but not right on the bottom. Hold your finger over the hole and turn it over. Now slip your finger off and put your mouth over the hole. The second you get your mouth on it you should take your other hand, reach up top and open the beer. Now suck suck suck all the beer from that can. If you do it without spilling a drop, congratulations, you just shotguned your first beer. I would recommend practicing in the bathtub before showing this off to your friends. The rule is, if you can shotgun 5 without spilling a drop, your ready to go show off.