When I was in college, I did study abroad in London. On my way home, I flew LGW-IAH-LAX. We were late leaving London and by the time I cleared customs in Houston, I only had a few minutes to get to my connecting flight. I ran as fast as I could, passing a few other people running to catch the LAX flight. I ran up to the gate as they were closing the door and yelled for them to wait. They quickly escorted me on and I got some dirty looks from the first class passengers. Apparently there were about 10 people coming off my LGW flight scheduled to be on this flight and they were waiting for us. I was the last person allowed on and they closed door behind me. Of course my seat was in the back so I had to walk down the aisle of shame... with people whispering, that's the person we are delayed for!