What happened to George's father at the inn? Can you guess why he and his friend behaved as they did?

George's father and his friend Tom were at the Pig and Whistle Inn. They go back to their room to find two men sleeping in their beds. THey try to throw the men out but get themselves thrown out in the process.

At night when George's father and his friend went to sleep, they found two more men sleeping beside them on the bed. They both decided to kick them both off the bed. At the same time they both kicked sending each other out of the bed.