Kurtis?
You know, I grew up with a girl whose sister was two years older than she. Our math teacher called her by her sister's name all through junior high and high school.
How was that one room school you attended to have the same math teacher 6 years?
And, any younger sibling from a large family gets the count down to their name. This is Little Larry, no, I mean Robert, no I mean Eddie, geez its Sam.