Recently came across the site Overheard Everywhere, which seems to consist of bits of overheard conversations with funny headlines.
Example of overheard snippet:
Student at table: Yeah, so, I finally found out what was dead in my basement.
It occurred to me that it would be fun to imagine these conversations as punchlines, beginnings, or other parts of stories. Try going to Overheard Everywhere and see what stories the overheard bits inspire.