Did you usually carry your personal belongings and books around while dispensing coffee and serving pancakes?
Years ago when I was a waitress, I did bring books as I was a student—had booth in back where could study if no customers, no sugars to fill etc...
Improbable perhaps; however, if I had been a high schooler, I might actually have had a yearbook with me at work as well.
I don’t recall all 4 years of high school yearbook signing, but as a senior I remember not having a specific signing time and trying to catch up with friends outside of school. I believe it was on senior ditch day—so many of us were not in attendance and sought signatures outside of school ;)