A new, young MD doing his residency in OB was quite embarrassed performing female pelvic exams. To cover his embarrassment he had unconsciously formed a habit of whistling softly.
The middle aged lady upon whom he was performing this exam suddenly burst out laughing and further embarrassed him. He looked up from his work and sheepishly said, "I'm sorry. Was I tickling you?"
She replied, "No doctor, but the song you were whistling was 'I wish I was an Oscar Meyer Wiener."