When Ellie is happy and she wants to show it, she rolls in the grass. When we walk Ellie at the beach and she's happy she usually rolls in the sand and plays with other dogs. Today she walked onto the beach during low tide, and to show how happy she is, she decided to roll in the first green item she could find. Our dog now smells like rotting seaweed and is lime green in spots. Of course she is happy, just crazy stinky. It's bath time tomorrow after work!