Have you ever had a good day that left you in a bad mood?

Yes, I can remember a day that was like that. Most things went well, so on balance it was a good day overall. But I happened to encounter a couple of rude, nasty people who left me with an icky feeling that I just couldn't shake. Actually I've had quite a few days like that. Sometimes I think my brain is wired to focus on the negative. Or maybe it's a deeply ingrained habit, I don't know.