I'd had my eye on some straw bales in a field on my way to work and was waiting for the light. One morning the light was just right and I got there to find the farmer had moved them!
This evening I was diverted a different way home as the A64 was closed and luck was obviously on my side as I came across this scene, with exactly the right dark clouds and beautiful warm light. The farmer was just leaving, I asked permission to photograph his field, he laughed that I was fine as long as I didn't make it rain!