And it's much easier to pass off one dog for another similar-looking one. There's substantial reason to suspect this may have happened with the current record h

And it's much easier to pass off one dog for another similar-looking one. There's substantial reason to suspect this may have happened with the current record holder for world's oldest dog ("Bobi"), for example -- IIRC, some of the photos show some sudden, inexplicable changes in coat patterning...