Like the misplaced chair you walk in to and crack your shins?
Many years ago I spent a week at a blind school helping out, then being fitted with an eye mask for a few days making me blind to understand what it's like. When you can't take the thing off your self and they leave you for a few hours longer than you were expecting, you really know what it's like to be blind. Now that's scary! So no fear of the dark, just what I might walk in to. Sorry, way off topic, I can log in and out at will now, isn't that good.
Have a great day thor.