I shoot a lot, almost everyday so the camera is on/off, in/out of the bag, etc. Inevitably a setting will get tweaked and it takes me a little while to reset as needed. This time something happened on the settings that I had never seen and could not figure out how to delete, so I just keep shooting.
Pro tip: It was an in camera multi shot setting! How cool and creative, I have now added it to my skill set. Sometimes you just have to go with the mistakes.