A Hippo?

The girls had so much fun yesterday at the zoo. It was so warm and sunny, and we had a great time. Today...30s and raining and snowing this morning. Yuck! But this afternoon the sun came out and it got into the 40s, so outside we went. I was sitting on the front porch watching the girls as they held hands and walked around pretending to be at the zoo. They stopped for several seconds, all holding hands and gazing at my mini van, and I hear Elizabeth say to her sisters, "Look, there's a hippo." Oh where DO they come up with this stuff?