I recently found out that it's proven that you can't throw your phone in the air without it flipping the short way at some point because of physics. I've never learned about this concept before but I did some research on the always trustworthy google and got an answer on why this is. The axis theorems in physics force this to happen because of the difference in inertia from when the phone is the long compared to the short. Because you are not flipping the phone perfectly along the axis it deviates and will go to the other axis. This is also true with other objects like books. I looked up the math and equations to figure all this out and it seems like a very complex topic but also makes a lot of sense with the different axis of an object and the way the inertia will cause it to respond.