Knock Knock

If you've spent any time with my son, you know he loves knock knock jokes. Jack cracks jokes all.the.time. So, we were at the park the other day. Jack was telling jokes. Ivy interjected "Knock knock." We answered, "Who's there?". My sweet little Ivy yells out, "Poo Diaper!" ....and then giggled long and hard. She was so proud of her new punchline. Jack roared. He thought it was the best punchline yet. I haven't heard the end of this one yet. It's been days and days of "poo diaper".