ROSAMOND, Calif. - A teacher who castrated a live pig in front of her high school class is the target of protests by animal rights activists throughout the country... Rod Van Norman, superintendent of the Southern Kern Unified School District school in the Mojave Desert about 70 miles north of Los Angeles, said animal castrations often occur in agriculture classes and are an important skill for students to learn. "I don't know why they're picking on a little school district," he said... A posting on PETA's Web site, however, says the organization learned of the castration from Rosamond parents, who reported that one student vomited after observing the procedure and others were extremely upset.