Speaking of survival of the fittest, how do boys survive past 13?

Science class today (they took gymnosperm & angiosperm fine but lost it when I explained that a gymnosperm was a naked seed.)

They all had magnifying glasses so they could observe the seeds we were going to be picking apart. We got one of the few sunny days the Pacific NW has in winter. That’s your set-up for the story.;

We all went into the backyard so I could make a point about roots. I turn around, and one of the boys has pulled his shirt up and is using his magnifying glass to focus the light beam on his stomach.

He said, and I quote: “Ow.”