Last week I was working on a large maple removal with lots of rigging that was taking me longer than anticipated. Around hour 8 of being aloft, I had about 3 branches and a top left to rope out. A few minutes prior I had another piece go wrong in a scary way, which was a testament to the fact that fatigue was setting in fast. I got up to the last of the brush which was all leaning pretty hard and braided together, so I didn't know exactly what order things would go in at that point.
I ended up sitting there for about 5 minutes, thinking that I was sorting it out or something. Finally I snapped to and realized I was totally overthinking everything, dwelling on the previous mistake, scared, death gripping my rope, and worrying more about how long things were taking than I should be. I was at the most challenging part of the job, and at my lowest mental and physical performance of the day.
I ended up calling it for the day right then; I decided I was at my threshold and the chances were too high that I would mess something up. It would have been a lot more satisfying to at least finish off the brush and come back sans chipper the next day, but I'm glad I looked past that and saw that working with a clear head is just more important than hitting arbitrary benchmarks. I'm REALLY happy that despite being in a mental fog where decision making was clearly compromised I was able to REALIZE that, and that I didn't just start making fuckit cuts. That was a big win in my opinion.
Sorry for the wall of text that's barely on topic, it's just something I've been processing for the last few days. Anyways, point is: listen to your heart, when he's calling for you....