Greyfriars Bobby, arguably the "Goodest Boy Ever", took loyalty to the next level when his master, John Grey, died of tuberculosis in 1858. In life, this dandie dinmont terrier had followed his master everywhere, accompanying him to work at the police station every day. Back then, policemen had to have watchdogs with them at all times, and Bobby was more than willing.

After his death, Bobby supposedly sat by his grave in Greyfriars Kirkyard—not just for a few days or weeks, but for 14 years, until he himself crossed the rainbow bridge. Over the years, sceptics have questioned details of Bobby’s story, including the identity of his true owner. Despite these disputes, Bobby’s steadfast loyalty is forever memorialised with a life-sized statue.