Fix it Duck
Fix It Duck is an over enthusiatic DIY handy man, keen to help out his friends even when they dont want his help. He is quite lacking in empathy - so not a good teacher on that front. But to understand the punchline of the story, a child has to be able to step into Duck's mind and spot the critical thing that Duck missed. I remember reading it again and again to my three-year-old twins, saying, "Do you see what happened? What Duck doesn't realise is..." and they loved the a-ha moment when they finally understood it. It's a good route for kids into learning about the idea of other minds.