Knick Knack Know How

Recently I have been spending a lot of time listening to nursery rhymes. It’s been at least three decades since I last paid attention to most of these songs, and I certainly didn’t notice the first time around how very odd many of them are. Take “It’s Raining, It’s Pouring,” for instance: It’s raining; it’s pouring. The old man is snoring. He went to bed and he bumped his head,…