Every Saturday, Mica, who is 17 years old, walks the Norris family's golden retriever, Rex. She has been doing it for two years. Last week, Mica walked Rex as usual, but Mrs. Norris did not leave her the $30.00 she normally leaves on the kitchen counter. The next day she calls Mrs. Norris and suggests she must have forgotten to leave her pay. Mrs. Norris tells her that she did not forget, but that she no longer needed her services. Did Mica and Mrs. Norris have a contract? If so, what type of contract? What are some of the issues that arise based upon the facts in this scenario