Last weekend I made butternut squash soup. In an experiment to get more of the squash browned I peeled two medium squash and cut them into 2 inch chunks, rather than just halving it, before roasting in the oven. (Result of the experiment was OK, but the extra exposed area also allows more moisture to escape, so I wouldn't recommend this method.)
Halfway through peeling the 2nd squash I noticed that the fingers on my left hand (I'm right-handed) were getting yellow and that the skin was drying, cracking, and tightening up. The yellow I can understand as transfer since I was using that hand to hold the squash while peeling. But I've peeled butternut plenty of times for various recipes and this hasn't happened before. Washing my hands didn't help. The problem went away after a couple of days.
Does anyone want to venture an explanation? Did my fingers O.D. on carotene or potassium?