I wear dark sunglasses a lot, yesterday was asked to remove them after talking for a couple minutes to a casual acquaintance. Been asked several times before, most notably while making small talk at the beach on the sunniest of days.
I do comply but I think it's kinda rude to ask someone to remove their shades. What do they fear, eyes like the devil or "kill" tattooed under the eyes? Sunglasses on while in the sun, that's what they're intended for, no?