I got my nickname "Kitso" the first day of freshman football in high school. My full last name was too long to put on the front of our helmets with tape, and was too difficult for the coaches to pronounce, so by the end of practice i was Kitso.
When i came to A&M and joined the Corps of Cadets, the same thing happened, especially since we as 'fish' couldn't have first names. My buddies got sick of callin me by my last name and shortened it to Kitso again. When my dad heard one of my buddies call me Kitso one time, he laughed and told me that his buddies called him the same thing back in the day.
I later found out that after i graduated, Kitso was passed on to my little sister, only with a "Little" in front of it. She HATES it

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My family nickname is Little John, because i have the same first name as my dad. He's Big John, and i'm little John, even though now i'm taller and bigger than he is.
Kitso
KS 361 times i have to stop from introducing myself to girls as Kitso