People who wear sunglasses indoors..

I don't understand the people who wear sunglasses indoors, it's so ridiculous. They think it's so cool but a lot of people are actually laughing at them, and even though they try to act cool, you can tell from the way they act, walk, etc that they're feeling so self-conscious about it which kind of defeats the purpose in the first place about trying to look cool right? Well, guess what? It's not cool, you're not blind and seeing things in black won't help a bit in your shopping! And they think it gives them the right to just ignore you or give an imperceptible and shallow nod of a greeting like as if they're royalty or something. Puhleeese!