I've spent too much time at IAH. When Hurricane Rita was bearing down on Houston, I flew in on my way to Pensacola, when my flight out was canceled. I waited in line for 5 hours to talk to a gate agent. The airport was packed, and they were shutting it down at midnight.
I stood in terminal C trying to get out of Houston. Finally, I got the last seat on a flight to Denver. My only other non-international option was Anchorage. As I waited for my plane, I stood on the bridge in C and could see a line of people thousands deep trying to get in. CNN was broadcasting live below, it was nuts. Those agents for Continental earned their money that day. I still have never been in a panic scene like IAH was that day.