The most common theory, is that the people with a dispute will go to a third party (an arbitrator), who will resolve the dispute for them. (politics.stackexchange.com)
The author actually examines several of the more common theories as to why dogs eat grass. (caninejournal.com)
One of the more common theories behind dogs that eat grass is that they do it as a means to vomit. (caninejournal.com)