Inspired by a thread over the BA forums, I decided to investigate prefix options for Aadvantage members and these are the options when you sign up:

Mr., Mrs., Ms., Miss, Dr., A.V.M., AB, Adm., Amb, AMN, Archbishop, Baron, Baroness, Bishop, Brig. Gen., Brigadier, Bro., Cantor, Capt., Cardinal, Chaplain, Cmdr., CMSGT, Col., Consul, Count, Countess, Cpl., CPO, CWO, Dean, Duchess, Duke, Earl, Ens., Eur Eng, Father, Fr., Gen., Gov., H. E., Herr, Hon., HRH, Lady, Lord, Lt., Lt. Cmdr., Lt. Col., Lt. Gen., M., Maj., Maj. Gen., Master, Mlle., Mme., Mother, MSGT, Pastor, PFC, Pres., Prince, Princess, Prof., Rabbi, Radm., Rev., Rt. Hon., Senator, Sgt., Sgt. Maj., Sir, Sister, SMSGT, Speaker, Squad.Ldr., Sr., SrA, Sra., Srta., SSGT, Swami, TSGT, Vadm.

Impressive indeed! According to: http://www.aa.com/namechange you are allowed to modify your prefix providing it does not alter your gender. Naturally, I think I would like to be addressed as "Squad. Ldr." when checking in. In fine print on aa.com they say they may require written legal documentation for name changes. Has anyone ever tried to add one of the more unusual prefixes above?