I've been a Danish prince, a Texas slave-dealer, an Arab sheik, a Cheyenne Dog Soldier, and a Yankee navy lieutenant in my time, among other things, and none of 'em was as hard to sustain as my lifetime's impersonation of a British officer and gentleman.
During a visit to California, when a friend of my grandmother's told my parents that I must be deaf because I was not responding to sounds, my father was absolutely convinced that I was simply being stubborn.