What hair style did you have ?
A story of mine, my grandpa Johnson was a barber and he was not a very nice man sorry to say.
So one day my cousin Norman and I went to his shop and ask him if he would give us a flattop hair cut and he said "no I won't and get the hell out of my shop" and that was one of his better days.
He hated any haircut that wasn't old style and refused to do any modern cuts. And yes he was always busy.
I had a flattop for years and now I cut it myself and it is as short as I can get it all over, never need to comb it or mess with it.