In the a recent topic ship and I refer to a practice known as "hot patching" and we both (strongly) advise against it. Coming from Australia – I hadn’t hear the term before reading here some time ago. This prompts me to ask the following questions: 1. What does the term "hot patching" refer to; 2. Why it is unsafe (or, do you think it is safe?) and; 3. What precautions and steps should be taken to achieve the same end result safely?