Pulling the human into the game...

So this morning my owner came home from a long shift. I was waiting anxiously for her as she walked in the door. I got down in my usual "I am ready to play" stance....shoulders low, my tail and butt in the air. She looks at me with eyes of exhaustion....but that doesn't stop me. I was racing around. I barked a couple of times. She met my demands. We went outside to play....she threw the ball for a while. Then she went inside.....long shift, afterall. But I was able to get into the house....stuck my nose in the crack in the sliding door so I could get inside. Gave it one last attempt to pull her into playing catch again. Didn't work this time.....