Catnap

You sit at the corner far underneath the Playhouse in Playcare. You can hear the squeals and laughter of the children just next you as you're drawing . Quiet humming comes from down the hallway, and you peek your head around the corner to check.

It's CatNap, one of the Bigger Bodies experiments. He is the only one left in his cell, as the other Smiling Critters were attending to the children up top. You approach CatNap as he hums to himself, with his back to you