So Embarrassing

Last night at about 11pm while waiting for the downtown subway to take us home from Grand Central, I noticed a black girl, about twenty something years old, running across the platform. I peeked around one of the support columns to watch where she was going and noticed that her pants were all wet. I also notice liquid falling all over the floor as she ran, and she was carrying a red plastic cup. She ducked into an inlet between two columns and I figured that she had just spilled her entire drink all over herself and was embarrassed. But then the liquid kept flowing down the platform into the subway rail. I said to Nick, “I think that woman just peed herself.” She hung back there for a while, and when she came out quickly walking up the stairs I saw that the whole back of her pants were wet too. She clearly pissed herself. And on top of that she was wearing pajama like pants and top so the liquid was very noticeable. Why was she wearing those clothes at 11pm in the first place? And was the red cup full of alcohol or for her to try and pee in? And why was she there peeing in the first place?