"It wasn't by my choice. Someone wanted Miles replaced with a substitute who could mimic him well enough to get past relevant security measures, kill a lot of his relatives, and become emperor of his planet, hopefully sparking a nasty civil war in the process. So this person created me and put me through intensive study in the subjects of Miles and murder until he could set up the switch. I didn't like him very much, and I ditched his plan as soon as I could."