An Hour for Lunch (1939)
Robert Benchley demonstrates how to use a lunch hour when one has several things to do besides eat lunch. He goes to the barbershop to get a haircut but his favorite barber is busy. He drops by a department store to exchange a shirt that was the wrong size, but when he gets there he finds he left the shirt in his office. Then comes an attempt to grad a quick lunch at a drugstore counter but a man waiting behind him for his seat makes him so nervous that he leaves half his food untouched. And once back in his office he finds he has indigestion.