Psmith in the City by P. G. Wodehouse

The department into which Mike was sent was the Cash, or, to be more exact, that section of it which was known as Paying Cashier. The important task of shooting doubloons across the counter did not belong to Mike himself, but to Mr. Waller. Mike's work was less ostentatious, and was performed with pen, ink, and ledgers in the background. Occasionally, when Mr. Waller was out at lunch, Mike had to act as substitute for him, and cash cheques; but Mr. Waller always went out at a slack time, when few customers came in, and Mike seldom had any very startling sum to hand over.

He enjoyed being in the Cash Department. He liked Mr. Waller. The work was easy; and when he did happen to make mistakes, they were corrected patiently by the grey-bearded one, and not used as levers for boosting him into the presence of Mr. Bickersdyke, as they might have been in some departments. The cashier seemed to have taken a fancy to Mike; and Mike, as was usually the way with him when people went out of their way to be friendly, was at his best. Mike at his ease and unsuspicious of hostile intentions was a different person from Mike with his prickles out.