Oh, oh! Can I play? Ok, here:
Dearest DH, whom I really, really love,
Flush the toilet. Seriously. I know it's "just pee", but after it has sat in there for several hours it stinks up the bathroom and stains the bowl. It's also nastay. I am sorely tempted to dip some out and pour it on your head next time I find it. Really - just flush!
your patient wife.