Organizers of California's Sonoma County Fair say one of the event's decades-old traditions -- a contest in which children try to catch 40 to 60-pound piglets for prizes -- will be scrapped this year because of growing public concerns about the humane treatment of animals, the Press Democrat newspaper reports. Instead, children on Aug. 4 will try to carry watermelons slathered in vegetable oil around an obstacle course in a race against the clock.