He wasn't into rolling over, couldn't be bothered to come when called and didn't even much like sitting on command.
But he did do that one thing that all dogs do - chasing after a toy and plopping it at his owner's feet - and he did it obsessively.
One day, Paul Lavery, who, along with girlfriend Jennifer Scott owns Harlso, was casually throwing a rubber chicken across the living room.
"You know when you start throwing it a hundred times you get bored of it?" Lavery, who lives in Belfast, Northern Ireland, tells The Dodo. "But he wasn't."
"So he was looking at me waiting for me to throw it and I sat it on the end of his nose."
And then Harlso unleashed the one trick that had been waiting inside him his whole entire life.