On the side of our office out by the street, it was raining. In the front of the building, no rain. The sun shone in half the sky, big clouds covered the other half.
Perfect conditions for a rainbow, perfect chance to show K.Lo that outside of storybooks, they do exist.
How lovely! (What's even more lovely is that K.Lo didn't ask you how the rainbow happened, an answer that I would be at a loss on!)