Honestly, I can't believe that we are actually discussing this! If you had a bona fide medical emergency and your flight had to make a unscheduled landing, would you feel right if other passengers asked for compensation? This is ridiculous and, honestly, this thread should be closed. I can't imagine why the OP would want to exploit an emergency situation (which was at tremendous cost to AA -- fuel cost, crew cost, airport landing fees, etc.).
