This thread reminds me of a funny story. Almost 10 years ago, I had hired a new girl to work in my department. About 1 week later I overheard two of our VP's discussing their vasectomies and comparing notes. They were standing right behind her. When one explained how his nuts blew up to the size of grapefruits, she looked over at me with a look of, "please help me" in her eyes.
I was no help as I burst out laughing. She turned red, put her head down on her desk, and covered her ears.