Arrrggggg! Reesie has always nibbled on the grass, ever since we got him. He is starting to do it more and more, and now it is causing him to puke. I know that some dogs do this 'cause their stomachs hurt, but Reesie has always done it. I think it is a habit, but it is now starting to be a problem. How do I get him to stop eating it? Does anyone else have this problem?