The Villains Out Shopping scene, in which Crisp is alarmed at all the various medications and safeguards his mother buys for Dominic. When he complains that she gave him all this stuff when he was a kid yet he hardly was sick, she points out this was WHY he was rarely sick. The pharmacist is rather amused by their conversation.
Kimble threatening the kid kicking his seat on the airplane by snapping a pencil in two with just his thumb.
You don't stop screwing around back there, here's what I'm gonna do with you. ::SNAP::
Upon hearing "Boys have a penis, girls have a vagina," Kimble reacts by saying, "Thanks for the tip."
Even better is the callback later in the film, when O'Hara visits the classroom, and is told the same thing. She looks at Kimble with a slight grin on her face, Kimble, for his part, has a large grin on his.
Kimble singing "Old McDonald Had a Farm" to the children while dressed up as a cowboy.
Kimble: "Are these your lunches? You're eating other people's lunches? STOP IT!!"
Kimble's speech to the kids when talking about "Police School."
You are mine, now! You belong to ME! You're not gonna have your mommies run behind you anymore wiping your little tushies! No more complaining! No more "Mr. Kimble, I have to go to the bathroom!" Nothing! There is no bathroom!
Kimble complaining to O'Hara:
The only problem I've got is that I'm doing your problem. You should be cleaning up the paint. You should be reading stories about bears that go shopping.