Kids Say the Darndest Things Again

My wife watches a four-year-old and he drew a picture with two circles (one inside the other) and said it was a button. He was going to give it to his mom to make the refrigerator work. He put it on the fridge with a magnet, pushed the "button," opened the fridge door, and said "See, it works." Where do they come up with this stuff? Amazing.