"Mommy got me a brand new potty! But I'm not ready yet! I want to run and play. Uh-oh, I peed in my pants. But Mommy says, 'That's okay!'"
Bookworm's interest at 21 months: He enjoys reading the book. He requests it to be read at least twice in a row. I'm not sure if he understands what's going on in the book or not. (We are having some success in the potty training, but I'll spare you the details.)
Parent's Peeve: I admit that reading this book aloud still kind of gives me the inner giggles, but I think it accomplishes what it aims to, with all of the right messages (it's OK if you're not ready yet, accidents are no big deal, just keep trying, etc.).