Hi. Well done, when I went on a canal boat training course, we found a canal boat that had slipped its moorings, the instructor, myself and other trainees, spent 30 mins or so securing the boat again. The instuctor had just helped a fellow boater, and did not think it unusual. But one of the crew did mention that if any thing was to happen to any one after we had left due to the rescue, ie. ropes, pins, planks etc. the instuctor might be libel under "Tort" law. Didn't know what that meant, still don't, did google it, but brain went bye-bye, but seems if you do something that causes injury, no matter how well intended, you could be libel.