When I first started to travel on business my boss used to joke that he liked to travel with me because I liked the aisle seat. He always wanted a window seat (so he could sleep) and when we landed he knew I would be standing in the aisle and blocking the back of the plane, which allowed him to get out of the row. He use to joke that i was his "designated blocker" and would even tell clients that was the reason he brought me along.
I can say that in China it was move or get run over, however did not happen to me that often as I am 6'6" and went 275 at the time.