Slim told Candy to shoot his dog to put the dog out of its misery. It was just to save the dog from pain, suffering and agony.
Slim advised Candy to let him shoot his dog because the dog was old, suffering, and unable to do its job. Slim knew it was a difficult decision for Candy, but ultimately it was an act of mercy to end the dog's suffering.
A shovel
Slim asks Carlson to take a shovel with him when he goes to shoot Candy's dog because he was being careful and understanding towards Candy's dog's death. He reminds Carlson to take a shovel to hint to Candy that 'It's alright, He's going to get a proper burial' and was intended to make Candy feel better.
His Dog Is Too Old And He Should Shoot Him In The Back Of His Head
Slim say's that he would want someone to shoot him if he was old and cripple like Candy's dog.
Yes, Slim agrees with Carlson that Candy's old and suffering dog should be put out of its misery. Slim recognizes that the dog is suffering and can no longer live a comfortable life, so he supports the decision to shoot the dog to end its suffering.
Slim tells Carlson to take a shovel with him when he shoots Candy's dog in "Of Mice and Men" to bury the dog afterwards.
In Chapter 2 of "Of Mice and Men," the conflict between Slim and Candy arises when Slim suggests that Candy should let his old dog be put down because it is no longer useful. Candy is attached to the dog and doesn't want to let go, while Slim argues that it would be more humane to end its suffering. They ultimately agree to have Carlson shoot the dog.
Calson wants to shoot Candy's old dog is because Carlson doesn't like the stench of Candy's dog.
Carlson takes his Luger pistol with him when he goes to shoot Candy's dog.
Candy has had his dog since it was just a puppy and it is now one of his only friends. He does not want to shoot his dog because he does not want to lose his friend.
Carlson's problem is that he dislikes Candy's old and smelly dog, claiming it is of no use since it is old and sick. He tells Candy that he should put the dog out of its misery by shooting it.
Carlson says that Candy's dog is old, stinking, and no longer useful on the ranch. He convinces Candy to let him shoot the dog to put it out of its misery, as it is suffering. This event foreshadows the theme of the weak being marginalized in society.