A Refund!!!

Ruby jumped as her cell phone began its usual ring to the tune of William Tell Overature. She picked it up and said "hellooooo?"

"Um... Ms.Hardbottle?" said the voice on the other end. "This is the accountant at Bywater Dentistry. We have accidentally overcharged you, and we would like to send you a refund, may we do that?"

"Certainly!" replied the stunned Ruby. This is something that had never happened to her before. She hung up the phone and gazed out the window, silently spending all of the unexpected cash.