Candy’s old dog was shot because it is wrong to let an animal suffer in pain. The dog “Got no teeth, He’s all stiff with rheumatism” and he is “ancient”.
Lennie killed Curley’s wife by acciendent because they were in the barn together and Lennie was stroking her hair, but she didn’t want him to mess it up ‘You stop it now you’ll mess it all up’. And she yelled and Lennie put his hand around her mouth and said “Oh! Please don’t do that. George will be mad”. George broke her neck another incident were Lennie doesn’t know his own strength.
Steinbeck links the beginning to the end with George and Lennie. They both continue through out the play reminding them selves of ‘The American Dream’, and that is what they talked about before going on to the ranch George thought it would be nicer to lay under the stars with one night relaxation. The last time they ever dream of ‘The American Dream’ is at the end when George shoots Lennie while he is dreaming of the rabbits. “Le’s do it now. Le’s get that place now” – was the last words he ever said.
Lennie is the same old Lennie with a childlike mental age. George is always there to look after him and tell him what to do like in a adult child situation, “come on, give it to me”. Stienbeck always describes Lennie as a animal from the beginning to the end “snorting into the water like a horse”. They always argue and Lennie says he will go away, but george knows that his best friend wont be able to look after him self and will end up getting shot, at the end he says “I can go away … an’ find a cave”. At the beginning Lennie says the same thing “go off in the hills…. I’d find a cave”. George said “somebody’d shoot you for a coyote if you was by yourself”
Lennie is also a killer, he attacks Curley, curlys wife, kills mice and throws his dead pup on to the floor in anger. Lennie is not mean, he doesn’t want to cause pain or suffering. George knew that if he let Lennie live then he would sooner or later be found and caught, and would most likely be tortured by Curly then be put in a prison for the rest of his life or killed on the spot. George didn’t want to she George go through any pain or suffer so he put him out of his own misery, just like the dog!