Leader came to learn from restaurant staff that Denns turned up there one day over a decade ago, scared and alone. They fed him and gave him water, thinking perhaps he was lost. But as time went on, it became clear that he'd likely been dumped there.
Denns never left, nor did he seem to have any desire to leave: "I learned that he resists when people try to take him anywhere," Leader said.
So, the Denny's became his home. And both staff and customers have gone above and beyond to make it as homey as possible.