The 'thousand yard stare' comes from soldiers who have fought on the battlefield. It's a blank stare as the person's mind is elsewhere. https://en.wikipedia.or

The 'thousand yard stare' comes from soldiers who have fought on the battlefield. It's a blank stare as the person's mind is elsewhere. https://en.wikipedia.org/wiki/Thousand-yard_stare https://en.wikipedia.org/wiki/Thousand-yard_stare