I used to go fishing some evenings , when I was about 14 .
I liked to hike upstream a couple of miles upstream , out of town.
One evening , as the light was fading & I was making my way home ~ there on the river bank was my chemistry teacher , bumming my physics teacher, grunting like pigs. . .
I just said, as I detoured around them: "nice evening for it , gentlemen. . . "
I never told a soul.
I would have hoped they might have showed a little respect after that, out of gratitude for my discretion . But the nasty one continued to be a dick , and the reasonable one , well maybe he was a little more reasonable . so I stopped ripping it out of the latter , and continued to put the other down . . . .