A couple lived near the ocean and used to walk along the beach a lot.
One summer they noticed a girl who was at the beach almost every day. She wasn't unusual, nor was the travel bag she carried. However there was just one thing ~ she would approach people who were sitting on the sand, glance around furtively then speak to them.
Generally, the people would respond negatively and she would wander off casually but occasionally someone would nod and there would be a quick exchange of money and something the girl carried in her bag.
The couple assumed she was selling drugs and debated about calling the police but since they didn't know for sure they just continued to watch her.
After a couple of weeks the wife said, "Honey, have you noticed that she only goes up to people with boom boxes and other electronic devices?"
He hadn't, and said so.
Then she said, "Tomorrow I want you to take a towel and our big radio and go and lie down on the sand and then we'll find out just what she's really doing".
Well, the plan went off without a hitch and the wife was almost bursting with anticipation when she saw the girl talk to her husband and then leave.
The man then walked back up the beach to his wife who was waiting anxiously on the road.
"Well, is she selling drugs?", she asked excitedly.
"No. No, she's not" he replied, enjoying this probably more than he should have.
"Well, what is it then? What does she do? What does she say?", his wife shrieked.
The man grinned and said, "She's a battery salesperson".
"Batteries?" cried his wife.
"Yes", he replied.
Ooooooooooooh. You're going to hate me for this but it will make your day ........
"She sells 'C' cells by the seashore!