This information is incorrect. The characters in John Steinbeck's "Of Mice and Men" are not described as being of different races, and there is no mention of racism based on skin color in the novel. However, the treatment of Lennie, who has a mental disability, can be seen as representative of prejudice and discrimination in general, including against those with disabilities. The scene you describe highlights the cruelty and ignorance of prejudice and the negative impact it can have on individuals and society as a whole.