This is not really on topic, but I have got to get this off my chest: What’s with men who put garbage bags, or shopping bags, or fitted plastic covers on their hats when it is raining – on Shabbos or any other day. I think it looks absolutely undignified, even ridiculous. A fine-quality felt hat, e.g., Borsalino, will survive the rain. Part of the reason for wearing hat is to stand before Hashem with dignity. A shopping bag on your head, even if it protecting a fine hat, destroys that. If you saw a gentile doing that, you would think he/she is nuts.
Have any rabbaim given an opinion on this?