Small food business

While talking to one of our instructors at his office earlier this afternoon, I noticed on the shelf near his desk a large oval Tupperware container filled with all sorts of individually packed commercial cookies and biscuits. Since this particularly healthy instructor is well known in our department for his fondness for food and cooking, I began to tease him saying, "Oh ho! I see you have a stash of goodies here in your office!" Just then another instructor entered the room, picked out one of the packages of cookies, handed some cash to the instructor I was talking to and walked out. It turns out that the instructor was selling the cookies to augment his meager income as an instructor. Not a bad idea.