In the classroom, Frankie can tell various knock-knock jokes if the player remains idle. Since these lines are a bit bizarre to see out of order/out of context, here is a list of lines that correlate:

What do you call a crazy chicken - A cuckoo cluck
Which dog always knows what time it is - A watchdog
What kind of fish do dogs like to chase - Catfish
What kind of vegetable do chickens like best - Eggplant
What are the most valuable fish - Goldfish
Why didn't the rooster cross the road - He chickened out
What is a rabbit's favorite song - 'Hoppy' birthday
How can you learn to speak to cows - Take 'moosic' lessons
What holiday do dogs like best - 'Howl'oween
Where do cow artists put their works of art - In a 'mooseum'
What did the little chick say to the big chick - Peck on someone your own size
What do you find in a pig shopping mall - Pork shops
Which part of trees do dogs like best - The bark
Which animal doesn't play fair - The cheetah
Why shouldn't you tell a secret to a pig - They always squeal
Why should you walk carefully when it's raining cats and dogs - You might step in a poodle