How does John Steinbeck create a sense of insecurity in his novel ';Mice and Men';.?

Help !!How does John Steinbeck create a sense of insecurity in his novel ';Mice and Men';.?
Steinbeck introduces us to George and Lennie just after they have gotten away from trouble inadvertently created by Lennie, pursuing his desire to pet soft things, which resulted in a false rape charge being raised against Lennie. So, we see that Lennie is not able to control his innocent urges, and that as a result, he is easily misunderstood. This knowledge sets up the principal anxiety of the novel, which is that Lennie is a loose cannon, sure to bring trouble, innocently, on the pair, if he's left alone with a woman.





To keep Lennie ';in line,'; George frequently threatens something that matters very much to Lennie, which is the promise that Lennie will get to care for rabbits on the farm they are planning to get for themselves some day, in the future. By repeatedly threatening something so vital to Lennie, George is demonstrating that he has few ';levers'; to control Lennie, and that of those he has, only the most draconian give Lennie pause. Thus, Steinbeck foreshadows Lennie going out of control with his urge to pet soft things, and the serious repercussions that result.