Overheard at my house: Tacos and math don't mix

"Does anyone want lettuce on their taco?"

Blink. Blink.

I was addressing five kids, all of whom know how to talk. I got bubkis.

"There's gonna be seven boys at my house Friday! 'Cause I'm having a friend over and my brother's having a friend over and then there's our dad and our dog..."

Right. That's not quite seven, but...

"So nobody wants lettuce on their tacos?"

Same kid: "Oh I do."

Right.