Dear Young Lady Whose Resume I Just Read:
I may be wrong, but I'm pretty sure that the word you were looking for to describe your last job was "barista," not "barrister.."
When I was working at a fadst food chain in high school, one day I was given a stack of old job applications to throw away. Under "References," one of them was listed as "Occupation: photographer." But I knew the applicant. He was a high school classmate of mine. The "photographer" in question was another classmate who took photos for the school paper and yearbook.
Another reference, again under "Occupation," was given as "hooker (part time)."