I sat next to Don Carty (AA's CEO) on a DFW-ORD flight. I had taken a bump for $700 and a first class seat. I was in the window seat and at the last minute, he boarded and sat next to me. I was trying to sleep but the FA's were fawning over him. All the FAs introduced themselves to him personally, etc. I had no idea who he was. When we arrived in ORD, he was escorted off the plane before anyone deboarded. That's when I asked who he was.