Oil rainbows

Got the bus to work today as parking has become a bit of a nightmare just now at my work. Was actually quite grateful for a bit of shut eye on the journey there as I hadn't slept well.

On the way home in the rain I kept looking at the ground to avoid the rain in my face since it was pointless having the umbrella up. Took a few random shots then was nearly home when I spotted this spilt oil on the ground. I loved the rainbow effect it had created, although did get a strange look from the guy from the local garage as I was crouched down taking the shot!