Final answer:
The question asks about a character named David selling items on eBay from Blouse Barn, but the provided reference is unrelated to the television show plot, thus no specific answer can be given.
Step-by-step explanation:
The question seems to be referencing a plot point from a television show where a character named David might have been involved with selling items on eBay from a store called Blouse Barn.
However, there seems to be a mix-up with the provided reference which is from Frank Norris's novel "McTeague" and not related to the question about David and the Blouse Barn. Since the actual details about what David sold on eBay at the Blouse Barn are not provided in the excerpt, it's impossible to provide a specific answer to the student's question.