요즘 다니다보면 상향등 켜고 다니는 차가 많아진 느낌인데요 김여사님들은 몰라서 그렇다 쳐도 시내버스들은 왜이리 상향등을 켜고 다니는지 모르겠네요 
  제 눈에만 많이 띄는 건가요? 아님 무슨 이유가 있는 건가요? 혹시 아시는 분 있으신지