In Of Mice and Men, it shows that Lennie can 't change because of all of the things he has done, like breaking someone 's hand and killing someone else. After Lennie Small and George Milton left Weed, a town they lived in, they went somewhere else to work. They had to leave because Lennie grabbed someone 's dress and wouldn 't let go after she screamed. When they got to the farm they would be working, the people noticed that Lennie was different. After Lennie had messed up over and over, he knew he had done something wrong and had to leave. When Curley had attacked Lennie, he didn’t know his own strength and broke Curley’s hand. “His closed fist was lost in Lennie’s big hand.” (Steinback 63). After that Lennie had killed a puppy because he