Poor dog...I blame the owners who knew that the dog chased cars and didn't take measures to prevent it.

Don't blame the bus driver, I'm sure they weren't trying to hit the dog!! If it darted out in front of a moving vehicle what could he do? Buses don't stop that fast, nothing does. Don't say you would hit the driver who most likely did his/her best to stop and is probably feeling horrible right now.

Again, I think the owners were irresponsible not to make sure their dog couldn't do the dangerous thing they knew it was prone to do.

Rest easy poor puppy.