Vinny's sense of humor continues to grow and change. I taught him the concept of the knock-knock joke over the summer, and he loves it still. For some reason, his favorite stage from which to tell jokes is the potty. So in the evening, when he is sitting on the potty doing his business, he is also telling me jokes.
Most of his jokes really aren't that funny, except for the fact that he laughs so heartily. For example, while on the potty, the punchline of his knock-knock jokes is often "[X] farted!" which gets pretty old pretty fast. He also repeats the old standards that I taught him, such as "Boo!" "Boo who?" "Don't cry -- it's just a joke!" and "Dwayne the bathtub, I'm dwowning!"
But it can be funny when he tells a surreal, Dada joke, such as "Knock knock!" "Who's there?" "Bob!" "Bob who?" "Bob sat on a mushroom!" and its sequel, which culminates in "Bob got off the mushroom and sat on a log!"