Although my user name is Gravy Boat Gary, my real name is Garrett Thomas, two fairly common names however the problem is Garrett is usually a last name and Thomas is usually a first name. Teachers at school would always call me Thomas, assuming that was my real first name and perhaps there had been a typo on the role or something.
Garrett is a hard name to call out in a loud place so when introducing myself allot of the time people think I say Gary, so it's like a second name or maybe I can't pronounce my own name right, muh doesn't matter.
Had a young family friend who couldn't pronounce my name correctly, he was a big Pokemon fan so he just called me Gyarados.