Getting a round in really is in the rules

In 1993, a journalist called William Greaves with a long experience of visiting pubs up and down Britain published a set of guidelines that was welcomed by watering holes everywhere. In it he outlined the unspoken code of conduct that exists when it comes to drinking in a group. So if you ever catch a mate trying to wriggle out of buying a round, you can simply refer him to Greaves Rules to settle any argument.