Wearing your glasses on your head when you're not using them is dumb

Seriously, why do people do this? It's not like there's any convenience to having your glasses on your head. It's not like they're staying on your face all day. So, why wear them on your head instead of putting them somewhere you actually know they're safe at? It seems like everyone at my school does this, and they always lose their glasses because of it.<br><br>EDIT: Wow, thanks everyone for not disappointing me by making me realize that I'm the weird one. <br><br>EDIT 2: To all you folks with your mugs and your hair and your helmets, I respect you and your right to live your lives how you want. I just personally think it's a dumb logistical choice.