A bus driver can't change his stops.
Stopping it with a shovel!
They both stop working when you take their chains off. Edit: Oh, I'm sorry. I thought this was America. By the way, got this from AskReddit.
They're always looking for some sort of change!
Zero.
Because he hit a bump in the road. What was the bump in the road? Little Timmy.
A stand up driver.