Soda Bubbles

There is a claim that if you tap on the side or top of a soda can before you open it, you will prevent the pop from fizzing all over you. Some people believe in a theory that by tapping the side of the can, you send all of the bubbles to the top of the can instead of the side so it doesn't being the liquid up with it when it wants to exit the can. I, on the other hand, don't believe this. I agree with the other side of the theory in that when you tap on the can you create just as many, or more, bubbles than you release from the side of the can. I also think that there is no way you can get rid of carbon dioxide in the can when carbon dioxide always wants to go to the lower pressure, which is outside the can.
The principle of critical thinking that makes this theory false is falsifiability. You can not physically chick to see how many bubbles are in the can and if tapping on the can gets rid of or adds bubbles. The definition of how much a pop will fizz and if the pop actually gained or lost fizz by you tapping on the side is debatable too. There is really no way you can measure the bubbles in the can before and after so this also makes this falsifiable. You can try to experiment with this by trying to get replicability, but you will never be able to see if the amount of bubbles was less or more than originally in the can. So either theory is correct depending on what you want to believe, but there is no way of getting the correct answer.