Four year olds are so sassy. I know this because I've observed Olivia with her preschool friends for half a day on field trips, so I have a little perspective.

One Sunday, it was very hot at home, so she took off her shirt and shorts while playing. Eventually, I told her I would take her for a walk. It's cooler outside.

"I have to put on my clothes first," she said.

I wanted to joke with her. "What for?"

"Everyone wears clothes when they go outside," she said to me.

"Who is everyone?" I asked.

"Everyone. You, Daddy, Jul, Popo, Kaili, Kira," she detailed.

"Well, sometimes babies don't have to wear clothes," I said.

She started to look exasperated. "Um, Gabe-ster wears clothes and he's just a baby," she pointed out. Gabe is her friend's little brother.

"Maybe some African people don't wear clothes," I suggested, thinking of something I've seen in National Geographic.

Now she looked at me like I was nuts. "Um, I'm not African. Geez, Lady!"

She got off the couch to put her clothes on. We had our fully clothed walk.