How I know my brain is still on break even though the rest of me had to go back to work

"I have a hankering for Indian food. Do you know of a good place?" Kirsten asked.

"Yeah," I replied. "I do. It's in St. Paul and called Taste of Thailand."

Pause.

"Oh. But is that Indian?" This follow-up was kind and undeserved.

"Actually. No. It's not." What does one say after that?

This conversation was yesterday, but today in front of the seventh graders, my reasoning skills had not much improved. Luckily, their grogginess rivaled my own and we got along just fine.