A husband and wife were resting on a beach when they noticed a girl
with a travel bag. She would approach people with boom boxes and other
electronic devices and speak to them. Occasionally she would hand them
something and walk off.
"She's probably selling drugs," said the woman.
The man decided to see for himself. The wife watched as her husband
walked across the beach to the girl with the travel bag. They spoke
briefly, and then her husband returned.
"Is she selling drugs," asked the Wife anxiously?
"No, she's not," replied her Husband. 'She's selling batteries."
"You don't mean...?"
"Yep," finished her husband. "She sells c-cells by the
sea shore!"