A Lancaster couple is suing the city school system over repeatedly putting their kindergarten child on the wrong school bus. Jason and Melissa Cottrill claim their son was misplaced at least five times this past school year. They say the Medill Elementary School pupil was either not placed on the correct bus or wasn't dropped off at his designated bus stop, or both. School attorneys declined to comment on the suit. The suit seeks 25-thousand dollars in damages, plus assurances that parents and children in the city school district never have a similar experience.