On a day’s visit to Chennai, I was startled when a seemingly formless wet and brown thing jumped out from the toilet. Then, as it jumped around the walls, it resolved into a tree frog. Its colour would let it hide on the bark of a tree. I didn’t have my good camera with me, only my phone. I took a photo, eased out, and switched off the lights. The next time I went in, the frog was gone.