[Red Squirrel]

I would do the levee idea, and get a permit or something in writing that certifies it as being ok, even if it's not required to have one for landscaping of that size. Just if she gives you trouble, you have something on paper. You could also just add some drainage, but I would personally prefer the passive aggressive route. It's more fun.

See if you can also do something to attract ducks. I think it would be funny.