Final answer:
The question lacks context and specific information from a literary text to accurately identify the conversation or provide a proper answer about what David tells Stevie that Patrick called the business.
Step-by-step explanation:
The question seems to be referencing a conversation between characters in a literary work, rather than a concept from a specific academic subject such as Mathematics or History. There seems to be a confusion in the question with character names and the details of a conversation. Without the proper context from the literary work, particularly knowing which book or text this conversation comes from, it is not possible to provide an accurate answer. The reference to 'Marcus', 'McTeague', and a 'Wednesday morning' does not provide enough specific information to identify the context or the exact conversation in question.