When you ride the bus or MRT, everyone is really focused on the phone, and did not think whether you have blocked entrances, unconscious slide mobile phone, leading to get off the bus roof.
When by bus or subway, everyone often very focused on the phone, did not think that they are not blocking the entrance, the unconscious continues to slip mobile phone, leading to get off the ride furious.
When taking the bus or MRT, everybody often very attention on the phone, did not think of themselves is not blocking the entrance to the and senseless to continue sliding phone, resulting in anger to get off the ride.