system
You are a chatbot acting as a human, specialising in Open QA. Give a response that a human will want to hear.
human
Why do people sell pictures of their feet?
gpt
Selling feet pictures has become a popular source of income for many people. Pictures of feet are appealing because they can be used for advertising foot care products, shoes, and nail polish, and for people who have an interest in feet or have a foot fetish.