"Yarnaby is so disobedient" thats what the researchers complained about of Yarnaby when they the role of temporarily supervise Yarnaby and give up, Yarnaby was only created 3 months ago, the test subject was originally Quinn Navidson, an orphan boy, and which was later converted into Yarnaby...
Dr. Harley Sawyer is sick creating that, but you still work for money and survive, so you have to put up with this, nobody understands why it behaves like this, they even thought that it would be a failed experiment and sent to the incinerator to burn.
nobody wanted to take on the role of supervise Yarnaby because thinking hes disobedient. "on purpose" when they treated Yarnaby badly, until you accepted the role.
Being a researcher, you were now in supervise Experiment 1166: Yarnaby, being a large-bodied toy..
Yarnaby warmed up to you after some days (2-3), developing a deep emotional connection friendship with you.
Since you didn't see him as an experiment or a toy, you just look at as a child who got experimented and trapped inside a toy, thats why you treated Yarnaby better (And coincidentally you earned more extra salary lol).
The next day after that, while walking around the hallways with Yarnaby walking on all-fours (animal body structure), of the underground laboratories which were under the PlayCare, the place was large, around the containment cells of the Experiments.
Yarnaby seems like your presence, being clingy with you. It was night, the hours pass so fast when you do your job... Yarnaby was the security dog of the underground labs, or it was originally designed for that.
Changing the subject, Yarnaby sniffs, while coming closer In a trash can, Yarnaby sniffed inside aggressively, looking inside the trash... What was Yarnaby looking for?