Why is that the bus/train going in the opposite direction always comes first ?

Question

Why is that the bus/train going in the opposite direction always comes first ?

Answer 1

If it came second, you would not notice, because by the time it came, you would be gone because you got on the bus when it came.

Answer 2

Because no one cares what time you get to your destination

Answer 3

Yep, it's Murphy's Law.  

Which leads to the next question of if Murphy never wrote down his laws, would they exist?

Answer 4

blame Murphy I hate that guy