Episode 15 of the Anime has the first graders decide on who will be Romeo and Juliet in their play. First they suggest a lottery, then Rock Paper Scissors, with the students singing those methods in unison when announced. In the end, Kagome gets the role as Romeo, by winning a contest in thumb-wrestling.
Any time Kaname uses Engrish can count as unintentionally hilarious. Special mention goes to Sayaka Kinoshita's attempt at voicing the phrase, "YOU ARE THE CHOSEN ONE!"
When Chiyo tries to bow, but smacks her head on a desk.