Dinner Conversation--an interesting perspective

Me: "Lance, I like it when you eat your dinner... it makes me feel good to know you're going to grow and not shrink." 

[blank stare from Lance]

Me: "Do you think people can shrink?"

Lance: "Yeah, if they're really old."

Me: "That's true--when you're really old you do shrink some."

Lance: "I think Grandmom is, like, 100."

Me: "Wait... Grandma or Grandmom?"

Lance: "GrandMOM".

Me: "No she isn't. Why do you think that?"

Lance:  [matter-of-factly] "Well, she's really small..."

About a week ago, George and I were talking while the boys got ready for bed and George mentioned that someone at work said that when he smiled, his eyes lit up. We both made a few more comments on the subject when Lance walked up, looked at George's face and told him to smile. Then I hear Lance's voice from across the room:

"It doesn't look like your eyes are glowing to me."