Mom: You know, we didn't even have kitty litter, when you kids were little. We used shredded newspaper for our cats.
Me (not really listening): Mmmm.
Mom: So when kitty litter was invented—wait, not invented, that's the wrong word—when it was discovered—
Me (snapping to attention): Mom, kitty litter was invented. There was no discovery of kitty litter.
Mom: Right, of course. Right!
Me: I mean, I'm pretty sure prospectors never sifted any kitty litter from the California rivers.
Scott (from the other room): There's odor-control crystals in them there hills!
Mom: You're going to write about this, aren't you.
Me: It hadn't occurred to me. UNTIL NOW.