Every show that answers real questions meets this one eventually. Ours arrived in the mailbag more than once, and at least one sender was eight years old. Does edible glitter show up in poop? It deserves a straight answer, because...

A child asks it better than an adult does. You stir a pinch of gold into something on the table, and a small voice says: wait, can you actually eat that? That is a bad moment to improvise. So: is...