Is OTHER wrong in the post ? POST : This is actually my first post, I really wanted to share this story because it has been on my mind for a week. I'm on mobile so I am sorry for the format.
To get to my school I have to take the subway, and transfer one or two time to get to my school. 
So the first train trip I was running late, and instead of going to the last station, I went to the station before it to get to school close to onetime,  even though it meant not getting a seat for my ride.
When I had to transfer trains, my legs were hurting from standing. (Also to the fact that I am on a sports team and my legs were killing me from doing a few laps). 
This is the time I should explain the layout of the train. It had 3 chairs a gap and 2 chairs perpendicular to it I sat on a chair at the end of the 3 chairs, and a guy sat on the other end so there was a seat in between me and him. (This is important to note).
Stops go and pass until it was 2 to 3 stops until I  reach my stop. The train is pretty crowded now, but the middle seat is still open. Then comes this lady.
I'm not trying to sound rude, but the only way to describe her was very obese. She proceeds to walk near to the middle seat. Note that the middle seat is for an average - lil thick person. But she puts down her bag. I though she was going to put her bag down to hold onto the pole. I was wrong.  She begins to try to sit down in the little seat. She actually though she could fit in.
She sits on half of my leg. I kid you not half of my leg was enveloped by her leg. I was literally sliding out of my chair in the process. So I quickly stand up.
Lady: you dont have to stand up sweety theres enough room to sit. 
Me: I'm sorry but you are taking up a part off my seat and I was getting pushed, it's fine if I stand for a bit
She didnt say anything to me after that, but muttered very loudly about me being rude and that I have plenty of room to sit.
Only one of two people stared a little at me, but it didnt matter as I got off in two stops. This made me think if I'm the asshole.