We cycled back along the towpath to our mooring, and then cast off to head towards Kidderminster. When we reached the first lock I went to work it, but found it set against us with the far gate open. I looked around the corner and saw a boat coming, so I assumed they had set it for themselves. It seemed not, this was somebody else's omission. Since the lock was ready for them I helped them through, which also gets the lock set for us.