I didn't get that far

rofl

Um... how did the bus whack you if it had already left? Was it moving toward you?

I was running for it

Were you running towards it from the back? If so, you would have had to run past the door in order to crash into the mirror.

That's why I asked if the bus was moving toward you (or you were moving toward it, which is equivalent).

I was trying to make him stop