Texans aren't immune, and its not just Continental. I had a similar experience in DFW flying American. They knew four of us were arriving late to our connection to Newark because the flight from Lawton, OK was delayed. We arrived about a minute late to the gate at DFW, and wouldn't let us board. They instead booked us on a later flight to LaGuardia! I guess they figure all those NYC airports must be right next to each other...