Zeus does that after a goooooood, loooooong stretch. He'll get up...looks at me all sleepy-eyed, bows down and pulls his front legs all the way forward. Then he yaaaaaaaawns, his tongue curls up, and he lets out a great big...
"yeeeeeeaarrrrggghhhhhh." Then he smacks his lips and proceeds to get into trouble.
"yeeeeeeaarrrrggghhhhhh." Then he smacks his lips and proceeds to get into trouble.