Confusion on the brain

Got a can opener handy? I need to see for myself what's inside this child's head! He looks normal enough on the outside. The neighbor lady claims he's the "cutest thing" she's ever seen... So, what's the deal? We took a drive to Grandma and Grandpa's - you know, "over the river and through the desert... to Burbank we will go..." On the side of the river is Sacagawea Park - one of the actual spots where the famed Lewis and Clark Expedition camped. Really.

We decided to WOW our new son with this bit of information. Of course, he's only seven years old, but if you're going to live in Washington - and the desert half at that - you have to show your pride somehow; you have to know your history, right? And, here's this famous landmark right along the roadway. So, I proclaim innocently enough: "Hey, that's where Lewis and Clark camped. Right there at that park. You know, they were early explorers and they followed this river to the Pacific Ocean."
"I know all about Lois and Clark."
"Oh, yeah? Lois and Clark?"
"Yeah, it's a tv show with Superman."
"Ah! Well, we're talking about Lewis and Clark. LEWIS and Clark... The explorers from 200 years ago."
"I know all about Lois and Clark."
"Well, sure you do. But this spot is where Lewis and Clark... you know, Meriwether LEWIS and Wlliam CLARK the explorers travelled and...
"I told you, I know all about Lois and Clark."
"But,"
He's shrieking now, "I hate it when people think I don't know what I'm talking about!" Soon, tears are rolling down his face... "I know all about Lois and Clark!!!"

Of course he does. And Who's on First and What's on Second... for months on end this conversation haunts us every time we visit Grandma and Grandpa's in Burbank. We finally have to call it quits. No one is allowed to talk about Lewis (or Lois) and Clark. Ever! We just pretend the landmark (and tv show) never existed. Otherwise we'll end up with permanent confusion on the brain.