Sure.
Step one: Inspect your dog. Does your dog weigh more than a beer? If yes, go to step 1.5, if no, Stop.
Step 1.5: Does your dog weigh more than the fridge door? If yes go to step two, if no, stop.
Step two: Congratulations, you own a dog that is not considered “a rat”. Your dog MAY have the level of manliness, or womanliness needed to retrieve a beer. Is your dog tall enough to retrieve a bottle from the lowest shelf? If yes, go to step three, if no, you are in possession of a basset hound, or a fat rat, Stop.
Step three: Build stairs for your pug. If you don’t have a pug, go to step four.
Step four: Train your dog to go to the fridge. This should be easy, simply give the command to “go fridge” and point at it. If your dog goes, treat it. If it looks at you as if you’ve grown a third head, try some more until it get’s the idea. If it runs around, licks itself, or doesn’t pay attention to you, you have a “dumb dog”. You might want to work on the basics first. Stop.
Step five: Tie a dishrag around the fridge handle and teach your dog to pull on it. initially send your dog “go fridge”, and then encourage it to pull on the rag. when it does, treat it. Eventually it will learn to pull the door open.
Step six; teach your dog what a beer is. You do this by showing it a beer and repeating "beer. Beeeeer. " Remember that dogs are mentally the equivalent of a retarded small child. This may take time, so don’t do this with your friends around; they already KNOW that you are retarded without you helping them out with such behaviour. Besides, they know your dog is dumb and won’t get the idea anyway. Eventually they will get the idea. Start a retrieving game by rolling an empty. When your dog reliably retrieves the empty, AND can open the door, you are ready grasshopper.
Step seven: Place the beer on the lowest shelf. This is where beer now lives. I don’t care where you kept it in the past, it now and forever must live on this shelf. Have your dog open the fridge. That task accomplished have them “bring beer” or whatever command you used in the fetch game. When the dog returns your drink, treat it lavishly with meat or cheese.
Step eight: Link the commands. “(name), Go fridge, bring beer”. Your dog should now be ready to accomplish this on their own. Treat your dog lavishly when they can do this reliably. If you think you are ready, show off to your friends, but be warned, most dogs understand the bragging dynamic and will have an attack of the stupid when you try to show off. Chicken wings can alleviate this condition. I suggest you make certain your dog does this trick as well as it does sit or shake before showing off during the big game.