One of my past Yorkies was named Scamper. The boy I have now is named K.C. which are the first initials of my daughter's names who have now moved out on their own. I really like Austin. I wouldn't worry about any names sounding too close - when are you going to call one and not the other???
I am getting a little girl March 16th and her name will be Lacy (Lace, Ribbons and Bows on her papers) - you can't get much closer to K.C. than that!
I know I was recently talking to a person who just got a bird and the lady was telling me "and, Bingo, he just got me" (he bit her). "Wow, that's what I will call him", she remarked
- so yes, names do come with interaction.