when it crosses over

E coming from a nap: "The giraffe in my room got green, and there was a pink cloud!"
us: "Oh, that was a dream, Ezra..."
E: "No, it was real! Look outside with me-- there's a pink cloud!"
E shows us and explains that the leaves in the window made the giraffe look green, and then there was a pink cloud, but now it's gone.