Im sad to say that Kirby would definitely be another annoying yapper with high potential to bite without a leadership role. weve found that out the hard way when ive left Kirby in my parents care when i was away for a few days. he became barky an whiny in his crate. became food/treat an toy possessive an hes bit my mom once. i wouldnt put it past him to do it again since he growls at them both when hes not getting his way. its cuz they spoil him an he takes lead role cuz he knows he can get away with pretty much whatever he wants.
with a leadership role hes a sweet awesome an quiet dog. but otherwise,, i can definitely see the 'real' reason why his previous owner placed him in the classified ads.