A young American engineer was sent to Ireland by his company to work in a new electronics plant. It was a two-year assignment that he had accepted because it would enable him to earn enough to marry his long-time girlfriend. She had a job near her home in Tennessee, and their plan was to pool their resources and put a down payment on a house when he returned. They corresponded often, but as the lonely weeks went by, she began expressing doubts that he was being true to her, exposed as he was to comely Irish lasses.

The young engineer wrote back, declaring with some passion that he was paying absolutely no attention to the local girls. "I admit," he wrote, "that sometimes I'm tempted. But I fight it. I'm keeping myself for you."

In the next mail, the engineer received a package. It contained a note from his girl and a harmonica. "I'm sending this to you," she wrote, "so you can learn to play it and have something to take your mind off those girls."

The engineer replied, "Thanks for the harmonica. I'm practicing on it every night and thinking of you."

At the end of his two-year stint, the engineer was transferred back to company headquarters. He took the first plane to Tennessee to be reunited with his girl. Her whole family was with her, but as he rushed forward to embrace her, she held up a restraining hand and said sternly, "Just hold on there a minute, Billy Bob. Before any serious kissin' and huggin' gets started here, let me hear you play that harmonica!"