Know it all.

 "Can we actually "know" the universe?  I mean, it's hard

enough finding your way around in Chinatown."

We had a Dad-parent come in and do an activity with the preschoolers. He said he had had some left over materials from a Solar System activity he and the older sibling had worked on and was positive the kids would love it.
I agreed but also let him know the kids are much younger. The dad is a High School teacher. "Piece of cake." He said.
We saw maps, a short video, and he began to teach the kids the names of the planets using word association. I found it interesting but I noticed the preschoolers squirming and tickling each other after about ten minutes.
I was about to rescue him when one of the kids raised his hand.
"Ah, a question!" The dad said looking rather pleased. "What's the question?"
"Um, do we have to know all this?"
"Oh....no, its just something really cool to know about."
"Oh good." Said the preschooler shaking his head; he looked relieved.
"Well why do you say it like that?" The dad asked.
"Well,this is cool ,'Jamie's Dad', but I have a hard enough time re-a-membering to clean my room."