Later in the episode, he has an even more annoyed expression when Doris calls for him during recess.
In the episode where Nora thinks of a birthday gift for Yoko, Nora chooses a box of cereal called "Weeds And Seeds". She normally doesn't like it but buys it for the green glass slipper. She says to her mother she will eat the entire box; cut to Nora taking minutes to eat the entire bowl and box of cereal. The slow music playing sounding like a clock complete with Nora's look of disgust◊ is pretty funny to look at and her chewing the cereal very slowly.
A moment later, he is told to get his head under the water. Claude remains stubborn and refuses until Timothy spots Doris and her mom approaching. Then he quickly dives under the water and stays there until they leave.
During the montage of Timothy helping Claude, they splash Timothy's dad with water; causing him to make a surprised face.
The episode where Timothy attempts to take a good picture of his class students. Most of the time the photos would either would look awkward or silly. Special mention goes to the scene where Timothy tries to take a picture of Charles and tells him to back a way. But at the last second, Charles falls onto the pile of cards which Timothy immediately takes.
Charles: (In an annoyed tone) You told me to back up.