Slim is understanding and sympathetic, offering George support and reassurance. Carlson is more concerned with the inconvenience and suggests George should have shot Lennie himself to avoid further trouble.
Slim takes on the role of a perceptive, intelligent 'prince of the ranch', and always 'hears more than what has been said to him.' - making him very perceptive and understanding and so it was easy for Slim to accept George and Lennie's relationship.
' "what's so funny about it?" George demanded defensively'
George tells Slim the truth because he senses that Slim is trustworthy and understanding of his situation. Slim's empathy and insight into human nature make George feel comfortable enough to open up about his past and current struggles, whereas he has typically been cautious with other men who may not be as compassionate or understanding.
Slim admires and respects George and Lennie's friendship. He recognizes the rare bond between them and understands the importance of their support for each other in a world where companionship is hard to find. Slim admires George's dedication to looking out for Lennie, despite the challenges they face.
lennie was the wise fool because his lack of intelligence enabled him to see in others what may not have been evident to the reader, like his initial dislike of the ranch foreshadowing that there would be trouble t
Curley's wife dream was to be in the movies, but because of this death she won't be able to live. Lennie's dream was to have their own ranch and have lots of rabbits, but since he killed someone he will have to be hung, or go to a circus and he won't be allowed to go outside anymore.
George says he knew Lenny's aunt Clara who had taken care of Lenny since he was born and since she has passed he's been taken care of Lenny ever since says Lenny kind of grown on him
George feels responsible for Lennie's well-being and knows that if Lennie is caught and executed by others, he may face a worse fate. By taking matters into his own hands, George believes he can ensure Lennie's death is quick and painless, sparing him from a potentially more brutal end.
Early in the book, Slim told Candy that killing the dog would be better for all involved. George felt that Lennie was a danger to society. Candy didn't have any merciful options for his dog and George has no other options for Lennie. Punishing Lennie would be inhumane, just as keeping the dog alive would've been. When Candy's dog was shot, Carlson and the other men didn't understand Candy's feelings, just like how no one understands why George is upset about his killing Lennie. Another comparison is that both Candy and George will be lonely without their respective companions.
George wants to give Lennie a pup so it attracts his attenion to something else, George thinks by doing this it will keep Lennie out of trouble. Also because George thinks a pup is bigger than a mouse so Lennie couldnt kill it easily.
Slim is a very respected character in 'Of Mice and Men'. Even Curley, the Boss' son and meanest character appears to be a little in awe of Slim. For example, Curley is constantly jealous of Slim because he is everything he'd like to be. Tall, handsome and popular. Slim also has a lot of empathy and is a good listener. Don't forget though that Slim is also realistic and realises he has to kill some of the puppies because they can't all be fed. He accepts that Candy's dog and Lennie have to die. He is as trapped as any of the others by the barrier of loneliness but Steinbeck suggests to the reader that Slim and George could be friends after Slim comforts George after Lennie's been killed
The introduction of Slim into the novel could almost be the introduction of the hero from a classic Western as he 'stood in the doorway', as if framed in a film. This idea is developed as the passage goes on, with his skill as a 'jerkline skinner' emphasised by his ability to kill flies with a 'bull whip without touching the mule.' Most importantly, his skills extend beyond his work; he is clearly respected and listened to - 'his word was taken on any subject, be it politics or love', and the description of his hands which are 'delicate as those of a temple dancer' make him sound almost feminine despite their being 'large and lean'. What this passage shows, then, is that an ordinary working man, who shares a room in a bunk house, can have 'majesty' and 'gravity' - and, through the use of the word 'kindly', shows he understands George and Lenny. Nevertheless, although our initial impressions of Slim are positive, we should not be blind to the fact that the ranch life is a tough life; Slim is forced to drown four puppies because the mother wouldn't have to feed them, and he allows Carlson to shoot Candy's dog. Even he doesn't stand in the way of Lennie being killed. This is a tough society in which people take the law into their own hands - as Lennie and George found out when they were in Weed. In addition, although Slim is presented by Steinbeck as intelligent, perceptive and a skilled worker, it has not brought him particular success. He is still a worker who lives in the buck house, and is as likely to face being fired as much as anyone else. He, unlike George, doesn't appear to have friends as such - and is therefore isolated. Though, Slim reminds us that for every Curly - unpleasant, rich and violent - there are decent, honourable characters and although the book could be seen as a sort or tragedy of American life, it ends with Slim comforting George after he kills Lenny: 'You hadda George. I swear you hadda.' This quotation also shows that Slim is wise enough to see through the pretense made by George that Lenny is 'a pain', and he realises the strong, brotherly relationship that was between them, so he realises the loss that George has faced.