Trip-Trapping

Still feeling very heavy in the head, I didn't get too far today. I went looking for a new viewpoint close to home - something that's getting increasingly difficult to achieve. I found myself beside the stream under the footbridge when this lovely couple appeared. I couldn't help myself. "Who’s that trip-trapping over my bridge?" I said. I think I need to work on my troll voice. They didn't seem perturbed at all - especially Catherine. How could I not blip those bright yellow wellies?