he pets the puppy because he likes soft thinks
Slim has the Puppy that Lennie Wants, that George Promised him to replace the dead mouse.
Lennie accidentally killed the puppy by petting it too roughly, as he often does because of his lack of understanding of his own strength. This incident foreshadows a similar tragic event involving another character later on in the story.
In "Of Mice and Men," Lennie has not developed mentally beyond the age of a young child, so concepts like death and hurting someone much smaller than him doesn't register. He believes the puppy will magically come back to life, or he can't understand the concept of death at all. At any rate, he continues to care for the dead puppy, even though it's no longer responding. He doesn't mean harm, but his size and lack of self control, makes him dangerous.
Lennie is alone in the barn with his puppy, which is dead. Lennie still strokes it sadly, saying, "Why do you got to get killed?
Lennie leaves Curley's wife in the barn because he accidentally killed her in a fit of panic. He takes the dead puppy to the river because he wants to give it a proper burial, as he doesn't understand the severity of his actions towards the puppy in the same way he does with Curley's wife.
when Lennie does something really bad he is supposed to go hide in the brush where they had camped the night before they went into work.
Playing with the puppie, but he then realizes that the puppy is dead. Cause of death? Lennie was petting him too roughly. It's the mice all over again.
If you mean the dead mouse from the beginning of the story, then because Lennie had his pants wet and George threw the mouse in the lake. George also knows Lennie too much, since they've been together for a long time, and assumes that he went to look for it.
Lennie is afraid for George to find out about the dead puppy because he thinks George will be angry and won't let him tend the rabbits on the farm as a punishment. Lennie's primary concern is losing out on the chance to fulfill his dream of caring for the rabbits.
The dead mouse and puppy in "Of Mice and Men" represent the vulnerability of those who are weaker and unable to protect themselves in a harsh environment. It highlights the idea of powerlessness and the cycle of tragedy that can occur in an unforgiving world.
Some memorable sights that affected Lennie in "Of Mice and Men" include the dead mouse he pets, the puppy he accidentally kills, and the vision of the giant rabbit who scolds him for his actions. These sights demonstrate Lennie's innocence and his struggles with understanding consequences.
Lennie's Sneaky ThingsIn Steinbeck's novel 'Of Mice and Men' Lennie tries to do many sneaky things. For example, in Chapter 5 we read about the puppy he was given by Slim. While playing with the puppy in the barn Lennie accidentally kills it, and then tries to conceal this fact by hiding the body under some hay.