He was serving in the very battery I so unprofessionally charged.
"Arms and the Man"
George Bernard Shaw
"But the worst of doing it professionally," said Jack, "is that you can't get out of the way of doing it unprofessionally.
"Watersprings"
Arthur Christopher Benson
She knew that he would be engaged at the cottage-hospital that morning, but it was one of Dr. Ratcliffe's strict rules that the car should never be used unprofessionally without express permission from himself or his assistant.
"The Keeper of the Door"
Ethel M. Dell