I find the staff totally different at IOA and US. When I went on MIB at xmas, I went on single rider, there was a foreign lady in front of me with her daughter and they sat down in the first two seats leaving me standing on the platform, so i went to go back inside tha barrier to wait for the next one when it closed on me! The staff all just stared at me (keeping in charcter?!) and did absolutely nothing! There was I standing squashed between the barriers until the next cart came along!!! I couldn't believe it! Funny now though, actually I sound quite stupid!