Dear Prudence,
My mother-in-law, “Lynn,” is the cheapest person I’ve ever met. Recently, however, she’s developed a disgusting habit that she thinks will save money: She will use a toilet multiple times (thankfully only piss is involved) before flushing. It’s bad enough that Lynn does it at her place, but now she’s doing it at our house. Even worse, she’s now encouraging my 5-year-old son to do it as well! My husband says just to “humor her” and be mindful to check the toilets in our home when his parents visit and flush them as needed. Please say I have a right to insist that people who use my bathrooms flush after taking a leak!