When Master is sad he feels very anxious. He would do almost anything to please Master. In fact he does. He rarely barks at the things he finds funny or irritating nowadays. He knows it annoys Master and so he suppresses all his most instinctive emotions. He cannot bear to disappoint Master that way. He has stopped sniffing even flowers - they used to be his favourite. Now he doesn't take a second look at them. Surely the Master knows what he has given up for Him?
But he feels so helpless when Master ignores him. He whines quietly and slinks away.