The more obvious choice, though, would be to continue the story of the walk in the rain. My original musings were about a walk I took with a friend during college, but for dramatic purposes I could change it from a platonic relationship to a romantic one. I probably would want to write about an adult relationship instead of a college relationship, so "We walked down to the creek the last year we lived in the dorms," would become, "We walked down to the creek the last day we lived on Hemlock." Now there's a story: A couple takes one last walk to a loved creek before moving out of a house. They're separating, and the separation has to do with the man's coldness. The swollen creek becomes a symbol for the emotions the narrator has had to repress in living with him. Yet they are both still the kind of people who take barefoot walks in the rain. Or perhaps they used to be those kinds of people, and they're also saying good-bye to their former selves, the selves who fell in love with each other.
Anyway, you get the idea. Feel free to choose a writing prompt, if you'd like, and then get a timer, a pen, and some paper, and try it yourself!

