Enamel missing from teeth.
When I stop a vehicle and discover that the driver is an old nemisis whom I personally hate outside of my duties, it's a little harder to issue those three warnings that I had intended to write upon originally observing it.
The charges are good ones. They're in the book.
And I've written for them plenty of times in the past.
But I hadn't planned to write them this night, and the only reason that I would have done so would be to make his life uncomfortable.
I gave him three verbal warnings courteously, and cleared the stop.
Frickin' ethics. They get in the way of a really good case of schadenfreude.