I fell up the stairs at Grand Central this morning

I fell hard up the effing stairs in Grand Central this morning and all i can say is, I'd rather fall up then fall down stairs. Either way it sucks and can be quite embarrassing. I was pushing myself on my commute, as always...obvi, and as I made my way through the turnstyle and up the stairs something happened. I took a strong two step stride and then felt myself going down hard...i was able to briefly catch my balance but as they say, "it was meant to be." I believe I made the sound or cry of "whoap" as I was heading south towards the grimy stairs but not even my cries could save me at that point. I recovered as quickly as possible and played it off like nothing happened in the 4 seconds it took me to get back up. I doubt anyone noticed as I held up the entire stairway...eff me. I have a cut on my shin but I will just have to walk this ugly incident off. Below is another video of someone falling and in this case, it was also meant to be.