The trial court erred in granting defendant school district summary judgment. Plaintiff, a student at the district’s high school was stabbed by third person when following after school sports practice, she briefly visited a Starbucks and then returned to the high school to recover her books from her school locker. The brief diversion to Starbucks did not interrupt the school’s duty to take reasonable measures to protect its students from foreseeable injury by third parties. Whether increased security measures would have prevented the injury was a disputed issue on which summary judgment could not properly be granted.