"You absolutely took the lesson ideas to heart, and this turned out well. It’s just what I was looking for in this exercise. But I think you can take it even further. I’m thinking you have a marketable idea for a nonfiction article here, since most readers won’t know much about rats."
Yep. That's what I was noticing too. It was an easy 2000 words, and I have plenty more to say. I guess I should take this advice and try to expand it out and sell it.
Seems vacation is ending, and it's back to writing for a living next week...