The optimism all saw in each time the danger to the opportunity, but the pessimistic person all saw in each opportunity to the danger. The father wants to pair of twin brothers to make "the disposition transformation", because of excessively optimistic, but another then is excessively pessimistic. One day, he has bought many lusters bright new toys for the pessimistic child, also feed-in the optimistic child between to pile up with the horse dung in the garage. The second day early morning, t...