I saw Kai smelling his hand. Oh no, I thought to myself. He's picking up my "smelling" habit.

Kai: Smell my hand, Mommy.
I sniffed his hand.
Me: What is it?
Kai continued to smell his hand and watch tv. A few minutes later, he said: It smells like feet.
Me: Who's feet?
Kai smiled and pointed to Keegan: Keegan's!