Actually, it might be a philosophical question.
Younger offspring: One of my classmates told me that you fart every second.
Dr. Free-Ride: What, me personally?
Younger offspring: No, humans.
Dr. Free-Ride: Each individual human farts every second?
Younger offspring: Yeah.
Dr. Free-Ride: No, I don’t think so.
Elder offspring: Well, there’s gas exchange with your butt all the time.
Dr. Free-Ride: I don’t think super-low levels of gas exchange count.
Younger offspring: Gas-exchange is a fart.
Dr. Free-Ride: No, I think there needs to be a macroscopic quantity of gas released all at once for it to rise to the level of a fart.
Younger offspring: How much gas does it need to be to count as a fart?
This has to be the grade school equivalent of the puzzle about how many hairs you need to cross the threshold from bald to not-bald, right? I get to count this as age-appropriate wrangling with distinctions, yes?
Because otherwise it’s just my kids talking about farting at the dinner table.