I'm not going to get into specifics, but there's been an issue that my mother and I have been arguing about for the last five years. Basically, I gave her a piece of advice and she's been telling me for five years that I've been wrong.
Then yesterday, she took my advice. And after five years of arguing, she admitted, "You were absolutely right."
Later that day, I made an offhand comment about how I was wrong about something. My older daughter quickly said, in all seriousness, "But you're never wrong, mama."
This day will live in infamy as the day I actually got respected in my house.