A newly married sailor was informed by the navy that he was going to be
stationed a long way from home on a remote island in the Pacific for a
year. A few weeks after he got there he began to miss his new wife, so
he wrote her a letter. "My love," he wrote, "We are going to be apart
for a very long time. Already I'm starting to miss you and there's really
not much to do here in the evenings. Besides that we're constantly
surrounded by young, attractive, native girls. Do you think if I had a hobby of
some kind I would not get tempted?"
So his wife sent him back a harmonica saying, "why don't you learn to
play this?"
Eventually his tour of duty came to an end and he rushed back to his
wife.
"Darling" he said, "I can't wait to get you into bed so that we make
passionate love!"
She kissed him and said, "First let's see you play that harmonica!"